Flushing water heater

By Emma (Sunrise Specialty Staff) Ever wondered how to flush your water heater? This routine task, although unpleasant, is necessary to clean the debris that has …When it comes to taking care of your water heater, one of the most important things you can do is regularly flush the tank to remove the buildup of dirt and sediment that accumulates in the bottom of the tank. This is fairly normal—most public water supplies have concentrations of minerals like calcium and magnesium … The Difference Between Draining & …Step 7 – Reconnecting Hot Water System. Remove flushing and draining hose from the hot water cylinder. Connect the cold water inlet & hot water outlet pipes back up to the storage tank. Turn back on the mains water supply and open a hot tap inside the home to allow the air to bleed out. Once the water flow from the hot tap has pressure and ...Dec 27, 2021 · Starting on the lowest level of your home, turn on all of the faucets in your sinks and tubs to cold water with full pressure. Let the faucets run for 10 to 20 minutes and ensure the water is clear when you shut them off. Flush all of your toilets a few times while the faucets are running. Turn off the cold water taps from the top floor to the ... How to Flush Sediment Out of a Water Heater · 1. Turn the Water Heater Off · 2. Turn the Cold Water Valve Off · 3. Let the water cool. · 4. Attach a dra...Air is normal after draining the system, when water isn't in the pipes, air is and it has to be purged. I just hope you killed the power to the w.h. before you drained it (if electric you most likely burnt out the elements). After draining, with the hose still attached, try starting and stopping the water for ten second bursts until it runs clear.When your household water heater fails, it can be a disaster. No hot water can mean no washing up, no showering and sometimes no heating either. So it pays to do your research as t...Step 3: Run the Hot Water Until it's Cool. Open a hot water faucet and let the hot water run until it is cool (this may take 10 minutes or longer). WARNING! Be sure the water runs cool before draining the old water …11. Close the heater drain valve, and completely fill the tank with freshwater. Leave the water in the tank for 15 minutes. 12. After 15 minutes, purge the hot water supply lines and drain the water from the tank through the heater drain valve, flushing out any sediment if present. Close the drain valve.Flushing a water heater typically takes about 30-60 minutes but may vary based on size and sediment level. Afterward, technicians perform post-flush testing. They check temperature settings and heating elements’ functionality. Technicians also test for leaks once again after repressurizing the system.Step 9. Turn on the hot water heater. Gallons of water pour through a water heater every day, leaving mineral deposits behind. Cleaning your hot water heater can be tough, but CLR cleaner can make it easier. CLR stands for calcium, lime, and rust. These three substances build up over time on surfaces that come into contact with water.Dec 15, 2021 ... So, do water heaters need to be flushed? The answer is a resounding yes. Regular water heater maintenance services are essential to ensure the ...Attach a Garden Hose to the Drain Valve. Locate the pressure relief valve near the top of your water heater and the drain valve near the bottom. Attach a garden hose to the closed drain valve and place the other end in a drain bucket, sink, or outside. The hose should be lower than the drain valve to ensure a strong water flow.Flushing the water heater regularly ensures these sediments don’t build up over time. Allow the water to drain until it goes clear. Depending on how often you flush your water heater, this could take just a few gallons, a few bucketfuls — or almost the whole tank. 6. Restore Power. Now, you can return your water heater to working order. Don't let you HOT WATER tank fail FAIL early and ensure you are getting the MOST HOT WATER possible while saving money if you know the EASY way to flush out ... First, unplug the water heater and flip the circuit breaker off. When the water is cool enough, open the bottom valve and allow the tank to drain. Then, close the bottom valve and pour 1-2 pints of hydrogen peroxide into the water heater’s inlet pipe on top. Let the hydrogen peroxide work for 2-3 hours before flushing the tank and lines.Jan 26, 2024 · 1.14) Turn Off the Water Heater. 1.15) Turn Off the City Water Feed and the Water Pump. 1.16) Open the Overpressure Relief Valve (Wearing Gloves if Needed) 1.17) Remove the Drain Plug. 1.18) Flush the Tank. 1.19) Install Your New Anode Rod (Suburban) or Drain Plug (Atwood) 2) How to De-scale a Tankless Water Heater. Instructions on how to clean/flush a tankless water heater (Rinnai)1) Unplug Water Heater2) Fill a bucket with vinegar (3-4 gallons) and put a submersible pu...Turn on the Water Heater. Shut off the drain valve and disconnect the garden hose. Be sure all but one of the hot water taps in your home are closed (the one in the bathtub closest to the water heater is best). Now you can turn the water back on to the water heater. Re-energize the system slowly by partially opening the valve.Table: Steps to Complete the Flushing Process. Step Description 1 Close the drain valve 2 Remove the garden hose 3 Open a hot water faucet 4 Turn on the water supply valve 5 Allow the tank to fill with fresh water 6 Open the pressure-relief valve 7 Turn on the power supply 8 Wait for the tank to fully heat the water.Nov 2, 2018 ... Run this hose out to your nearest drainage location, such as a yard landscape drain or even down to your gutter if possible. Whatever you do, ...Once the vinegar solution line is connected, turn on the cold water supply and let the vinegar solution run through the tankless water heater for about 45 minutes to an hour. This will allow the vinegar solution to thoroughly clean the internal components. 5. Rinse with Clean Water.Flushing a water heater means draining the tank of water. To do this, a plumber will connect a hose to the tank's base, close its input and open the output valves, and let water flow out and drain away. It might sound simple, but it's quite a complex process. Before any water can drain, shut off key components like the thermostat and gas ...Click Here To See the Bonus Video http://quickwaterheater.com/faq/#1454584230877-dc4c2601-42Flushing Your Water Heater is very important for your water heate...How to Flush Water Heater and Test Pressure Relief Valve on a Rheem Performance Plus Water Heater. A big maintenance item for a water heater is too service i...Nov 2, 2018 ... Run this hose out to your nearest drainage location, such as a yard landscape drain or even down to your gutter if possible. Whatever you do, ...Flushing your water heater can be a complex and sometimes intimidating process, but we’ve outlined 7 detailed steps to follow. Step 1: Turn Off the Water Heater’s Thermostat. How to do this depends on what model you have. Check the manual for specifics, but here are some general tips: Look for an Off button toward the bottom of …Step 7 – Reconnecting Hot Water System. Remove flushing and draining hose from the hot water cylinder. Connect the cold water inlet & hot water outlet pipes back up to the storage tank. Turn back on the mains water supply and open a hot tap inside the home to allow the air to bleed out. Once the water flow from the hot tap has pressure and ...Air is normal after draining the system, when water isn't in the pipes, air is and it has to be purged. I just hope you killed the power to the w.h. before you drained it (if electric you most likely burnt out the elements). After draining, with the hose still attached, try starting and stopping the water for ten second bursts until it runs clear.Flushing a water heater is an important part of basic DIY water heater maintenance, as discussed above. Unfortunately, sometimes a water heater’s drain valve becomes so clogged with mineral deposits that it must be replaced. Here we show you how to replace it, step-by-step.Step 4: Flush the Water Heater. After draining the tank, you can now flush the water heater. To do this, connect a submersible pump to the hot water outlet on the unit and place the pump in a bucket of clean water. Then, connect another hose from the cold water inlet to the bucket. This will create a closed-loop system that will flush out any ...Flushing a tankless water heater is a step-by-step process that ensures proper maintenance and optimal performance of the unit. Below is a summary of the key steps involved in flushing a tankless water heater: Step 1: Turn Off the Isolation Valves and Gas. The first step is to turn off the isolation valves and gas to the water heater.Flush the Water Heater. Regularly flushing your water heater can prevent germs from growing, make it last longer, and is recommended by most manufacturers. If you decide to flush your water heater, follow the manufacturer’s instructions or have a professional do the work. Many manufacturers recommend flushing your water heater: AnnuallyIf the drain valve won’t close tightly when you’re done, drain the tank completely, unscrew the old valve and screw in a new one. To restart the water heater, open the shutoff valve and let the hot water run at any faucet to purge air from the system. Then turn on the power or relight the pilot. Set your water heater’s dial to 120 degrees F.The flow of water in and out of your water heater is compromised depending on the location of buildup. Water heater valve: your water heater comes connected to a shut-off valve. If this valve is opened fully or is closed, you will experience low water pressure. Turning the water heater valve to open fully can remedy the situation and …Flushing a water heater is a relatively simple process that only takes a few minutes, but it does require some special equipment. If you decide to do it yourself, be sure to follow the manufacturer’s instructions carefully. If you have a gas water heater, you’ll need to turn off the gas before flushing it.Oct 24, 2021 ... Turn on a fixture in your house - Go inside and turn the cold and hot water on for a fixture like a tub. Let it for 5 minutes to completely ...If your water heater is old you may need a new Sacrificial Rod. It screws in at the top of the tank and protects a water heater tank from corrosion. See one...Nov 17, 2022 · How to Back-Flush a Water Heater. To back-flush a water heater, you connect a hose between the drain valve and an outdoor faucet, and squirt water back into the water heater through the drain valve. You’ll need a garden hose and a double-female garden hose coupler (available online for about $8) so you can connect two male threads together. This Old House plumbing and heating contractor Richard Trethewey shows a quick and effective way to drain a sediment-filled water heater. (See below for a sh...Any device that water passes through needs to be flushed. This includes: water fountains, ice machines, soda machines, water heaters, dishwashers, and coffee makers. Replace all point-of-use filters, including filters in refrigerators. Keep water heaters set at their designated temperature (ideally at or above 120°F). For an electric water heater, shut off power to the unit by flipping the breaker at the service panel. Pull back any insulation to expose the thermostat. Use a screwdriver to change the thermostat temperature in 10-degree increments. Close the panel, turn the power on and check the water temperature after one hour. Hot water – a minimum of 50 degrees Celsius after one minute (55 degrees Celsius in healthcare settings). With a TMV fitted, water temperatures at the hot tap should not exceed 44 degrees Celsius. Cold water – a maximum of 20 degrees Celsius or below after two minutes. When flushing remember to guard against splashing waterAug 8, 2019 ... A burned out heating element will result in no hot water and will have to be replaced. So, before you restore power to the water heater, begin ...Top Reasons to Flush Your Water Heater. In the recent video, Court shows the top reason you should be flushing your water heater. After years of …Jan 26, 2024 · 1. Turn off the power to the water heater: This is an important step to avoid any accidents or injuries. Locate the circuit breaker that controls the water heater and turn it off. 2. Open the hot water valve: This will allow any sediment or debris that may be in the water heater to flow out. 3. Flushing a tankless water heater with vinegar will require it to circulate in for at least an hour, and you can go longer if you wish. For most descaling cleaners, you will only need to wait about 30-minutes. For vinegar, you should use between 1-4 gallons of vinegar, and one gallon is probably the minimum.Learn the process of draining a water heater and flushing out the accumulated sediment. Read the blog: http://bit.ly/IaYBurHome Improvement Online With Ron H...Flushing a water heater is a simple task that can be done by anyone. Here are the steps for flushing a water heater: 1. Turn off the water heater: Before flushing the water heater, make sure to turn off the power supply to the unit. This will prevent any accidents or injuries during the flushing process. 2.Tankless Water Heater Flushing Kit Includes 1/4HP Submersible Water Pump with Adapters 3 Gallons Pail with Bucket Lid Opener and 2pcs 6’ x 3/4” NPT Stainless Steel Braided Hose Easy to Use. 4.6 out of 5 stars. 23. 50+ bought in past month. $109.99 $ 109. 99. FREE delivery. Open the cold water inlet valve to fill the tank and close it. Leave the hydrogen peroxide for a few hours in the tank's water. Open the cold water valve again and hot water tap so the hydrogen peroxide can flush the supply lines. Drain all the water and peroxide from the tank (including debris). Close the drain valve. DIY Tankless Water Heater Flushing: Flushing a tankless water heater on your own can save you money and provide a sense of accomplishment. However, it does require some time, effort, and the right tools. You'll need a wrench, a 5-gallon bucket, double-sided tape (for flyers), and a gallon of white vinegar.Homeowners can drain a Rheem water heater by turning off the power to the heater, shutting off the water supply and attaching a hose to the drain valve. If the bottom of the heater...Water heaters require regular care and maintenance. Over time, sediment, calcium and minerals settle at the bottom of the tank, which can impact your water quality and lead to heating issues. Draining and flushing your water heater will remove buildup and help prolong the life of your water heater.DIY Tankless Water Heater Flushing: Flushing a tankless water heater on your own can save you money and provide a sense of accomplishment. However, it does require some time, effort, and the right tools. You'll need a wrench, a 5-gallon bucket, double-sided tape (for flyers), and a gallon of white vinegar.Flushing a tankless water heater is a step-by-step process that ensures proper maintenance and optimal performance of the unit. Below is a summary of the key steps involved in flushing a tankless water heater: Step 1: Turn Off the Isolation Valves and Gas. The first step is to turn off the isolation valves and gas to the water heater.Step 2: Connect one hose to the cold water inlet valve of the water heater and the other hose to the hot water outlet valve. Step 3: Attach the other ends of the hoses to the submersible circulation pump and place the pump in a bucket. Step 4: Add the cleaning agent to the bucket with the pump and hoses.1. Locate the water heater: Find the water heater in your home. It’s usually in the basement, garage, or utility closet. 2. Turn off the water supply: …Learn the basics of tankless water heater installation and replacement, including the cost, materials and tools needed to get the job done. By clicking "TRY IT", I agree to receive...Flushing a water heater typically takes about 30-60 minutes but may vary based on size and sediment level. Afterward, technicians perform post-flush testing. They check temperature settings and heating elements’ functionality. Technicians also test for leaks once again after repressurizing the system.Although, flushing the water heater is the solution to this problem, it may not be the best answer. In some cases, the sediment build-up can reach a point where flushing the tank is no longer possible and may cause your tank to leak. When this is the situation, your best move is to purchase a new water heater.Mar 20, 2018 · Step 1: Turn off the cold water supply to your water heater. In older homes, you may need to turn off the water where the main water supply line enters your house. If you have a water softener between your main supply line and the water, there should also be a supply shut-off valve there. Step 2: Turn off or turn down the water heater ... Flushing your Rheem tankless water heater is a crucial maintenance task to ensure optimal performance and longevity. Over time, mineral deposits, sediment, and debris can build up inside the unit, affecting its efficiency. Flushing helps remove these impurities and keeps your water heater running smoothly. Check Out Our FREE GUIDE: *25 Must-Have Carpentry Tools...Under $25 Each!*https://www.thehonestcarpenter.com/Check Out Our Collaborators For This Video!THE E... May 3, 2022 ... Perform a Quick Flush. Before you shut off the water, connect a garden hose to the drain valve and try and flush the water heater tank a bit ...Every tankless water heater should be flushed and maintained regularly. Over time, mineral deposits and sediment can accumulate inside the unit, affecting its ...1) How to Flush an RV Water Heater 1.1) Gather the Tools and Items Needed for the Job 1.2) Prepare your RV the Night Before You Flush & Clean Your Water Heater 1.3) Turn Off the Water Supply and Water Pump 1.4) Remove the Access Panel 1.5) Open the Overpressure Relief Valve 1.6) Remove the Drain Plug/Anode Rod 1.7) Flush the …The solution: Flush out your water heater annually. The best way to avoid these problems is to flush out your water heater every year. And it's relatively ...Draining and Flushing a Water Heater Follow these steps carefully when you need to empty a tank-style water heater to maintain, repair, or replace it. By Rex Cauldwell. Whenever you need to change an element in an electric heater, leave the heater unused over a freezing winter, or when the heater needs cleaning, you’ll need to drain it.Importance of Maintaining The Water Heater . Annual maintenance of your water heater is important. It helps stop the calcium from building up into large rocks. Those rocks can get stuck in the system and interrupt water flow. It also prevents unwanted leaks and running water sounds. Flushing your water heater annually is a part of maintenance.This is bad: it will cause cracks in the heater's glass lining, allowing the underlying metal to rust and drastically shortening the life of the unit. Anode rods have a life expectancy of about five years, but as always it really depends on the quality of your water and how much of it travels through the heater.Navien Premium Efficiency condensing tankless water heaters are the #1 selling high efficiency condensing tankless water heaters in North America. The NPE-2 series offers ultra-high efficiency up to 0.96 UEF to keep your utility bills low, endless hot water, and exclusive ComfortFlow® technology with a built-in recirculation pump and buffer tank.Flushing a Tankless Water Heater – Safety Precautions. Be very careful when flushing your tankless water heater, otherwise hot water from the system can burn you. Use either food grade, not regular, vinegar or chemicals recommended by the heater’s manufacturer for this task.Jan 17, 2024 · Open a hot water faucet in your house to relieve pressure in the tank. Attach a garden hose to the drain valve at the bottom of the heater. Place the other end of the hose in a suitable drain location or bucket. Open the drain valve and allow the water to flow out. Be careful as the water may be hot. Oct 22, 2023 · The cost of flushing a water heater can vary depending on several factors, including the size of the tank, the location of the heater, and whether you choose to do it yourself or hire a professional. National Average Cost. The national average cost for flushing a water heater ranges from $100 to $200. A water hammer arrestor is relatively easy to install and will take care of the sound instantly. 3. Screeching. By far one of the scariest noises a water heater can make. We associate screaming or ...1) How to Flush an RV Water Heater 1.1) Gather the Tools and Items Needed for the Job 1.2) Prepare your RV the Night Before You Flush & Clean Your Water Heater 1.3) Turn Off the Water Supply and Water Pump 1.4) Remove the Access Panel 1.5) Open the Overpressure Relief Valve 1.6) Remove the Drain Plug/Anode Rod 1.7) Flush the …Look at the Water Supply Lines. The first place to check is the plumbing pipes above the water heater. A drip from above can easily leak down on top of the water heater and even work its way down the insulation and make it look like the leak is coming from the tank itself. Check the plumbing pipes above the water heater, using a stepladder if ...How to Flush a Water Heater the RIGHT WAY - DIY Plumbing - Water Heaters 101Water heaters need to be flushed regularly in order to keep them working …Find brochures, manuals, guides, labels, specs, drawings, revits & certificates for Navien tankless water heaters. Where to buy. Residential. Residential Products. Efficient and earth-friendly products designed for any size home. Overview. Tankless Water Heaters.Top Reasons to Flush Your Water Heater. In the recent video, Court shows the top reason you should be flushing your water heater. After years of …According to various sources, the cost of flushing a water heater can range from $75 to $500, depending on factors such as the size of the tank, the type of water heater, and the plumber’s expertise level. For most standard water heaters, a flush will cost between $80 and $100 . However, plumbers typically charge between $75 and $250, with …Flushing a water heater at least once per year is an essential part of water heater maintenance. Those comparing the cost of a tank vs. tankless water heater will want to know that not only do ... Learn how to flush a tank water heater and save money on maintenance. Watch this video and subscribe for more tips. Feb 14, 2023 ... If you're like most people, you probably just take your water heater for granted. But have you ever stopped to think about what happens when ... Step 1. If you have an electric water heater, turn the electrical power to the water heater off at the breaker box. If you have a gas water heater, turn the thermostat to the vacation mode setting or the lowest setting possible without actually turning off the pilot light. Step 2. Allow the water heater to cool. 11. Close the heater drain valve, and completely fill the tank with freshwater. Leave the water in the tank for 15 minutes. 12. After 15 minutes, purge the hot water supply lines and drain the water from the tank through the heater drain valve, flushing out any sediment if present. Close the drain valve. Flush the Water Heater. Regularly flushing your water heater can prevent germs from growing, make it last longer, and is recommended by most manufacturers. If you decide to flush your water heater, follow the manufacturer’s instructions or have a professional do the work. Many manufacturers recommend flushing your water heater: Annually To begin the flushing process, locate the drain valve at the bottom of your water heater. Attach a garden hose securely to the valve, ensuring there are no leaks or loose connections. 2. Flushing the tank with cold water. Once the hose is properly attached, turn off the power supply to the water heater.According to the U.S. Department of Energy, regularly flushing your water heater can increase its efficiency by up to 15%. While most manufacturers recommend flushing your water heater at least once a year, it may be necessary to do it more often if you live in an area with hard water. Signs Your Water Heater Needs Backflushing🔧 What To Do About Sediment Buildup In A Water Heater. Here are some of the best ways to tackle hot water heater sediment build-up. Flush Your Heater. The quickest way to remove sediment from water heaters is with flushing. Regardless of your water’s sediment content, you should aim to flush your heater tank at least once a year.Feb 14, 2023 ... If you're like most people, you probably just take your water heater for granted. But have you ever stopped to think about what happens when ...Water heater repair costs $150 to $700 on average. Water heater service costs $100 to $350 to replace the heating element, thermocouple, igniter, anode rod, dip tube, or thermostat. Water heater gas valve replacement costs $150 to $550. Water heater flushing costs $75 to $250. A tune-up costs $100 to $500. Get free estimates for your …Jan 26, 2024 · 1.14) Turn Off the Water Heater. 1.15) Turn Off the City Water Feed and the Water Pump. 1.16) Open the Overpressure Relief Valve (Wearing Gloves if Needed) 1.17) Remove the Drain Plug. 1.18) Flush the Tank. 1.19) Install Your New Anode Rod (Suburban) or Drain Plug (Atwood) 2) How to De-scale a Tankless Water Heater. Flushing your tankless water heater is an important maintenance task to keep your system operating at peak performance, but before starting, you'll need to get your supplies together. In addition, you'll want to keep safety top-of-mind. Here's a few safety precautions: You should always use caution when working with your tankless water heater.Water heaters raise the temperature of water for use in bathing, cooking, irrigation, industry and other hot-water applications. Here’s how the three basic types of water heaters w...By flushing sediment out of your water heater, you can save money and heat your water faster. You can learn more about why you should flush sediment out of your tank here. Learn how a how a water heater works to better understand how to flush your tank. 1. Turn the Water Heater Off If you have an electric water heater, turn off the power switch.Feb 22, 2024 · Step 7: Flush. In order to flush your water heater, you’ll need to turn on the cold water spout and let it run for a few minutes. Keep a close eye on the water coming through the hose. Again, you’re watching for the water to run clear. Once it does, you’re all done with the flushing process. Oct 27, 2023 · Regular water heater maintenance will typically include flushing the unit, checking for leaks, inspecting and replacing the anode rod, if necessary, testing the temperature and pressure (T&P) valve, and checking the thermostat. You may also want to add insulation around the water heater to reduce energy loss. Flushing a water heater is a relatively simple process that only takes a few minutes, but it does require some special equipment. If you decide to do it yourself, be sure to follow the manufacturer’s instructions carefully. If you have a gas water heater, you’ll need to turn off the gas before flushing it.When it comes to installing a water heater, one of the most important factors to consider is the cost. The average cost to install a water heater can vary depending on several fact...We use it for our day-to-day activities such as showering, bathing, washing utensils, and many others. Our life depends on water, so flushing it once or twice a year is critical to get pure water. This article tells you about the 10 best tankless water heater flush kit, so you can confirm your unit lasts for an extended duration.11. Close the heater drain valve, and completely fill the tank with freshwater. Leave the water in the tank for 15 minutes. 12. After 15 minutes, purge the hot water supply lines and drain the water from the tank through the heater drain valve, flushing out any sediment if present. Close the drain valve.Watch as Ace's Home Expert, Lou Manfredini, shows you how to flush a water heater. Learn about why this is an essential step to keeping your water heater in ...Step 2: Buy A Flushing Kit. We strongly recommend buying a water heater flushing kit to use over the next steps. These kits cost around $100-$130 and come with everything you need to flush tankless water heaters, including hoses, a submersible or sump pump, buckets, and adaptors.. You’ll also need to buy your own cleaner to use in …Hot water – a minimum of 50 degrees Celsius after one minute (55 degrees Celsius in healthcare settings). With a TMV fitted, water temperatures at the hot tap should not exceed 44 degrees Celsius. Cold water – a maximum of 20 degrees Celsius or below after two minutes. When flushing remember to guard against splashing water1. Locate the water heater: Find the water heater in your home. It’s usually in the basement, garage, or utility closet. 2. Turn off the water supply: …This is bad: it will cause cracks in the heater's glass lining, allowing the underlying metal to rust and drastically shortening the life of the unit. Anode rods have a life expectancy of about five years, but as always it really depends on the quality of your water and how much of it travels through the heater.How To Flush A Hot Water Heater To Remove Sediment. How to drain and flush a water heater. Detailed walk-through on how to drain and flush a gas or electric …Flushing your water heater at least once a year is recommended to maintain its efficiency and extend its lifespan. If you notice excessive sediment buildup or experience water heater performance issues, consider flushing the tank more frequently. 2. Checking and Replacing the Anode Rod.FLUSHING A Water Heater The RIGHT WAY Step by Step - Water Heaters 101Water heaters need to be flushed regularly in order to keep them working …When a hot-water heater goes out and finances are tight, buying a used replacement may seem like the only affordable option. Individuals who take the time to search their local cla...Nov 2, 2018 ... Run this hose out to your nearest drainage location, such as a yard landscape drain or even down to your gutter if possible. Whatever you do, ...11. Close the heater drain valve, and completely fill the tank with freshwater. Leave the water in the tank for 15 minutes. 12. After 15 minutes, purge the hot water supply lines and drain the water from the tank through the heater drain valve, flushing out any sediment if present. Close the drain valve.Learn why and how to flush your water heater, a simple DIY project that can extend its lifespan and prevent expensive disasters. Follow the step-by-step … | Csbakslgiju (article) | Mhlwyvh.