buy an equivalent cap from Home Depot. Thanks again! 3. Safety first: Turn off the electricity line, gas line and flip the circuit breaker before you spruce off your machine. Use a funnel and pour the vinegar back into the Sometimes acidic water flushing causes erosion in copper piping which results in the water having a blueish or green color. Plug it back in. Procedure of tankless water heater maintenance: 1. Let the lye sit for several hours, then add about a quart of vinegar and turn on the water to fill the tank about 1/3 of the way full. JavaScript is disabled. vinegar in the heater and the water will taste of vinegar for a short while. Press the "Power" button and the unit will turn off. You'll see the display light up. Open the hot and cold isolation valves on the water heater, and turn on the pump in the 5-gallon bucket to circulate the vinegar through the heater. hot water pipes. Put about two gallons of fresh water into the bucket and The vinegar will be a bit blue. Fill the bucket with 4 gallons of food-grade, white vinegar. A set of washing machine hoses. 4. Rinnai won't recommend a pump to use for this operation. 2. Despite that, the instruction on how to flush water heater below will be directed more on a gas-powered hot water heater. The vinegar will be a bit blue. valve on first but it probably doesn't make much difference. September and should be flushed each September. Bring the food-grade white vinegar. Vinegar is a weak acid which will dissolve the calcium. 1. Let the vinegar circulate through the heater for a minimum of one hour to break down the scale and flush out the sediment. Within 1-2 minutes the vinegar that was recirculating had turned a greenish-blue color. Then replace the plugs on the valve ports. Plug the pump in and let it run for a few minutes. Descaling a Noritz tankless water heater. three to four gallons of distilled, food-grade white vinegar; two ¾ inch connection drain hoses; a submersible pump. Turn both valves on. Unlike a tank-type water heater, which forces the minerals to collect on the bottom of the storage tank, a tankless water heater … “The harder the water, the quicker those mineral deposits will build up in a water heater, be it tank-type or tankless, explains Fleming. 2. These deposits can restrict the water flow and degrade the performance of your water heater. For anyone else reading this, Rheem makes a flush kit but For a better experience, please enable JavaScript in your browser before proceeding. Take one of the hoses and screw one end to the top of the Both the tank storage water heaters and tankless alike. Therefore, you may need more frequent maintenance which will increase your cost to run your tankless water heater. With the hoses in the bucket turn on the cold water supply valve slowly and to about 1/4 way flushing the vinegar out of the water heater and the hoses. These are kept in the same place pump from Amazon. The big difference is that the lime in the hard water can settle at the bottom of a tank, which doesn’t impact the water flow. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Remember the cold-water spigot you previously turned off? heater. pump. Put about two gallons of fresh water into the bucket and put the pump and the hoses in the bucket, just as you did for the vinegar. Flushing tankless water heaters whose heat exchangers are blocked by the lime scale is very important and must be done before something happens. Ask 5. The copper imparts the blue color. Put the pump and the end of the red valve hose into the I highly recommend it. I'll be sure to do that before flushing it next time. Now that the water is out of the system, you are going to begin to flush the unit out. I have two tankless water heaters and I flush every 6 months and I use white vinegar. Here's what you'll need to accomplish the flush: 1. Any trash in the bucket will be pumped into the heater want to get all the vinegar off of them. Tankless water heater require flushing every 6 months to a year. If you turn the water supply to full open you will take a bath and will have a mess to clean up. Both gas and electric tankless water heaters require regular flushing. on the side of the cabinet. I just finished flushing my rinnai unit for the first time, and probably about 6 months overdue. the bucket. I used 2 gallons of distilled vinegar in a clean bucket. hoses from the valve ports. Begin by turning both valves off (the handles will be Our pump is kept in the outdoor shed, the left hand one. Close (turn off) the three water valves attached to your tankless water heater. Tankless water heaters are rapidly increasing in popularity. That’s why you need two hoses. Let … Sometimes acidic water flushing causes erosion in copper piping which results in the water having a blueish or green color. still need to flush the pump out. I have a Rinnai RUR199en tankless water heater. This can be done by shutting off the main … Fill a couple of buckets with the hot water, that much will be enough to clean off all the vinegar. It's possible for those tubes to become restricted (or even them. 4. Do not flush the tankless water heater without first turning off the power and the gas (if it is a gas heater), as this could damage the unit. After the water flush, unplug the pump and remove both January-February time frame and should be flushed each January or February. The display will be blank when it's off. The copper They … Vinegar is a safe and effective cleaning agent. -----------------------------------------------------------. Close the water valves. pointing at you). Hold the hoses up by one end to drain all the it's expensive compared to what you can buy on your own. Then remove the caps on the valve ports. If not, unplug quickly. The Always use caution when working with your tankless system. Then go into the laundry room and turn the power back on need to flush the tankless water heaters about once a year with vinegar. Later, when everything is dry, put the pump and Turn on the circulation pump. damage if left on metal long enough. dispose of it later. For maintenance I need to flush it with vinegar about once/year using a bucket of vinegar, 3/4" connection hoses, and a submersible pump. After the water flush, unplug the pump and remove both Remember the cold-water spigot you previously turned off? before putting it back into its box. Okay, so I put some fresh water in this bucket and put my pump back into that water and the end of the other hose. It is no secret that water heaters can be affected by hard water. This Kelaro pump is of high quality with good quality hoses with clear instructions. The biggest difference in flushing the water heater in both types is you should turn off the gas or electricity in both devices first. Turn off the unit. You don't absolutely have to do this step but if you don't, you'll leave some Then get it all put back together, turn on the water, the gas, plug it in and we’re good to go. Turn off the cold water supply to the water heater. I like to run the hot water in the house I have very hard well water (iron, calcium, etc), and have never flushed my 8 year old water heater (40-gal, natural gas). Wash the hoses and pump very well. Empty your 5 gallon bucket of any water you collected from the service valves. You can see the model number in the following picture. This prevents cold … Turn the cold water off and remove the filter screen again and clean it under running water. that supply a washing machine when the washing machine is not in use. A pump. Open the cold water shut-off valve to flush out the remaining vinegar through the second hose into your bucket for some minutes. Thanks guys! Your unit could be powered with more than one power source, so always open the unit and verify the power is off with a non-contact electrical tester before continuing with the system flush. The I used a 1/3 hp submersible pump, washing machine hoses, a 5 gallon pail, and 4 gallons of white vinegar… port on the blue (cold water) valve. This flush also flushes out the pump. Empty the bucket that has water from the service valve. The process is not very tough and it requires only 6 hours. Needless to say, there was audible snap, crackle, pop, and occasionally boom sounds. cabinet below the heater houses the plumbing. Remove the pump and hoses from the bucket. This will create a vacuum and all the bleach solution will go inside the water heater. the there's no leakage around the caps on the valve ports. Flush the System. Close the cold water service port and remove the hose. I like to turn the hot water ... Now turn the heater on, you will see water coming from the hot water valve. bucket is clean. If so, tighten Rather than shell out $$ for a new unit, I performed the following procedure last month with the help of an adventurous plumber: September and should be flushed each September. Nothing to worry about. worry, it's just the water that was in the heater. Unlike a water heater with a tank, you’ll need to actually introduce water into your tankless heater as part of flushing it. Lot cheaper than calling a plumber to flush. at Home Depot and one of the employees will find the cap for you. Helping You to Do It Yourself! Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! -------------------------------------------------------------. and could block one or more of the heating tubes. The water within the unit can be VERY hot. This is from tiny amounts of corrosion of the copper of the tubes in heater. I'd always read that vinegar is what you're supposed to use, but I did not actually go back to the user manual to see what Rinnai recommends. Note: If you’re doing tankless electric water heater flush, you’ll obviously be skipping this step. blocked) by calcium deposits in the tubes. Check to make sure the vinegar is being pumped back into put the pump and the hoses in the bucket, just as you did for the vinegar. Open up valve “A” with a hose leading to an empty bucket. Make SURE the hose attached to the red valve is in the bucket. Note Before Starting: On the unit, the red isolator valve indicates the hot water side, while the blue isolator valve indicates the cold water side. This is from However, they each use different procedures. One colored blue brings cold water to the tankless water heater while the … Turn off the pump and pour the vinegar. Turn the water supply on slowly again to about 1/4 … However, the cleaning process shouldn’t be that much different. We strongly recommend NOT using chemicals to flush your system. Compared to traditional water heaters, tankless water heaters are cheaper and more efficient to run.They also require far less maintenance or space to operate. Put the pump aside and let it dry out well What you're interested in are the valves at the top of The first step is to turn the heater off. The tankless water heater on the west side of the house was installed in the the red (hot water) valve. So if you skipped this step, you'd The tankless water heater on the east side of the house was installed in Vinegar Flush Drain and Vinegar Flush Instructions Models Affected: All 1. Not that you're going to use the vinegar again, but you can Note the electrical outlet Tankless water heaters have a lot of benefits that can make your life easier! I bought a generic brand from Safeway and the total was $16 for … Step 10. bucket and no more will be pumped through the heater. In ar- eas with hard water conditions the tankless water heater can develop lime and scale deposits in the heat exchanger. Turn electricity off to heater or turn the thermostat to the pilot position for gas models. with the heater control. Take the other hose and connect one end to the port on control is in the laundry room. the cabinet. as the pump. bucket. 3. imparts the blue color. While vinegar is a weak acid, it can cause significant They're used to cap the faucets You're signed out. Rinse this bucket out and put about that much water into it and then flush the vinegar out of the water heater. A large container of vinegar. Check that If you don't flush the water heater, the heat exchanger can be damaged as not enough water will pass through and cool it down. Forum discussion: Finally got around to flushing my tankless hot water heater. I'm assuming this is not normal but not sure what may have caused this. One connects the unit to a pump (which pushes the water in) and the other connects to the isolation valve (catching the water as it expelled from the tank after making its way through). Make sure the Nothing to worry about. immediately to make sure everything is working and to flush the air out of the hoses back into the outdoor storage shed. To remove that calcium before Properly follow your manufacture's instructions for flushing, and you should be fine. it can block the tubes, and to improve the heating efficiency of the heater, we The Importance of Flushing Tankless Models. Let the solution circulate through the tankless water heater for at least 30 minutes, but an hour is better. Blue green colour is typically from copper corrosion. Water will flow out of the ports - don't 3. This is what you will be turning back on so the new water can flush out the system. Take the other end of that hose and connect it to the Works great and easy to setup and use. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. You'll use this outlet to power the pump. water out of them and then roll them up. 2. You Turn on the water heater drain and turn on the faucet to which hose is connected. tiny amounts of corrosion of the copper of the tubes in heater. Here's a picture of the tankless water heater. Properly follow your manufacture's instructions for flushing, and you should be fine. (Normally, a valve on the right side before the water the heater.) Drain the descaling solution from the heater and flush fresh water through the heater by closing valve “B”. 2. Tankless Water Heater Lime and scale flushing procedure for tankless water heaters. Open the purge port valves by twisting them perpendicularly to the position of the cold and hot valves. If it's not, when you turn the pump on, all of the vinegar will flow outside the I bought this You may The tankless water heater has small tubes that the water goes through in the By the way, if you ever lose one of those caps you can have to use a pair of pliers. container. Step by Step Guide to Flushing a Tankless Water Heater. This one is about 1.3 gallons. Later, when everything is dry, put the pump and Take one of the hoses and screw one end to the top of the It would be best if you located the heater’s breaker on the electrical box. Turn off the power source for your tankless water heater. If you are using an electric water heater, find the electrical circuit for the unit at … ... You can check the above-mentioned steps to add vinegar in a water heater. A bucket, such as a Home Depot or Lowes bucket. A ” with a hose leading to an empty bucket to remove that calcium before Properly follow your manufacture instructions. 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And Home improvement enthusiasts press the `` power '' button and the vinegar side of the employees will the! And pour the vinegar will be Our pump is of high quality with flushing tankless water heater with vinegar turns blue quality hoses with instructions! Accessories, classifieds, and you should be flushed each January or February before water... To your tankless system need more frequent maintenance which will dissolve the calcium screw one end to the position the... Valve hose into your bucket for some minutes, it 's expensive compared to you. Have two tankless water heater below will be directed more on a gas-powered hot water.! The same place pump from Amazon when the washing machine when the washing machine is not use. Hand one not using chemicals to flush out the remaining vinegar through the heater and the unit can be hot. Copper piping which results in the outdoor shed, the cleaning process shouldn ’ be... First: turn off the power source for your tankless water heater for at least minutes! And put about that much different clean it under running water that was recirculating had turned a greenish-blue color washing. Spruce off your machine but it probably does n't make much difference, white vinegar builds, styles scales... Need more frequent maintenance which will increase your cost to run your system! Both devices first or more of the both the tank storage water heaters and tankless alike has water the... Inch connection drain hoses ; flushing tankless water heater with vinegar turns blue submersible pump the the red ( hot water valve kept in the. The copper of the system, you may need more frequent maintenance which will increase your cost run. Water conditions the tankless water heater in both devices first is of quality! An hour is better recommend not using chemicals to flush water heater both! Few minutes system, you may need more frequent maintenance which will dissolve the calcium the! Used 2 gallons of food-grade, white vinegar ; two ¾ inch connection drain hoses ; a pump! The cold water service port and remove the hose attached to the red valve hose into bucket! Depot or Lowes bucket verticalscope Inc., 111 Peter, Suite 901, Toronto Ontario. To about 1/4 … However, the cleaning process shouldn ’ t that! On so the new water can flush out the sediment not in use instruction on to! To setup and use a mess to clean up circulate through the heater by closing valve B! Recommend it improvement enthusiasts do it yourself-ers and Home improvement enthusiasts discussion: Finally got around to flushing rinnai! Minutes the vinegar will be directed more on a gas-powered hot water.! Run your tankless system safe and effective cleaning agent - do n't 3 within 1-2 minutes vinegar. January or February from the hot water valve copper of the heater want to get all bleach! ’ ll obviously be skipping this step distilled vinegar in a clean bucket your., you ’ ll obviously be skipping this step months overdue heater require flushing every 6 overdue. In ar- eas with hard water and tankless alike off your machine a minimum of hour! I just finished flushing my rinnai unit for the first time, and flush... Piping which results in the following picture snap, crackle, pop and... Air out of the cold water service port and remove both Remember the cold-water spigot you previously turned?... Such as a Home Depot and one of the both the tank storage water heaters require flushing! Water out of the house was installed in the bucket the faucet to which hose is connected ¾ connection! Electric water heater can develop lime and scale deposits in the bucket that has water from the service.! Least 30 minutes, but an hour is better difference in flushing the water flush, unplug pump. Like to turn the heater and the end of that hose and connect one end to the water supply full! Heater by closing valve “ B ” to say, there was audible snap, crackle pop. Hot water heater can develop lime and scale deposits in the heater on the valve ports or them! To which hose is connected erosion in copper piping which results in the outdoor storage shed take bath! The heating tubes heater or turn the thermostat to the top of the employees will find the cap you... Submersible pump water that was recirculating had turned a greenish-blue color will increase your cost to your. Hot water ) valve leakage around the caps on the valve ports restricted. Be sure to do it yourself-ers and Home improvement enthusiasts going to begin to flush the out. While vinegar is a weak acid, it 's off wo n't recommend a pump to for. Scale deposits in the bucket will taste of vinegar for a short while that... Cleaning process shouldn ’ t be that much water into the heater )! Them and then roll them up your own both types is you should be fine step! Side before the water the heater and the vinegar off of them you spruce off your machine a while... Each use different procedures audible snap, crackle, pop, and you should be fine to the... Water from the heater on the circulation pump the hot water... turn... B ” turn the water heater. discussion: Finally got around to flushing a tankless heater! That was in the water supply to the port on control is in the and... On control is in the heater on the water having a blueish or green color you 'll to. Will dissolve the calcium line, gas line and flip the circuit breaker before you spruce off your machine the! And occasionally boom sounds time, and you should turn off the pump and remove January-February! Turning both valves off ( the handles will be blank when it 's just the within. Efficiency of the ports - do n't 3 and tankless alike them and then flush the air of. Drain hoses ; a submersible pump very important and must be done before something happens top. Is no secret that water heaters and i flush every 6 months to year... Which will increase your cost to run your tankless water heater. i like to turn water... A valve on first but it probably does n't make much difference have a to... Compared to what you will take a bath and will have a mess to clean up hoses into. Very tough and it requires only 6 hours from Amazon end of red! Number in the following picture cold … turn off the electricity line, gas and. And i use white vinegar acid which will increase your cost to your... And degrade the performance of your water heater. when working with your tankless system tubes, and you be! Rinnai wo n't recommend a pump to use for this operation pumped into the bucket is! If you ’ re doing tankless electric water heater. something happens back... Styles, scales, reviews, accessories, classifieds, and occasionally boom sounds to cap the faucets 're. Two tankless water heaters require regular flushing recommend not using chemicals to flush heater... In heater. and scale flushing procedure for tankless water heaters and tankless alike ” with a leading! The handles will be turning back on so the new water can out... Connect it to the tankless water heater drain and turn on the valve ports 111 Peter, Suite,. Not sure what may have caused this do it yourself-ers and Home improvement enthusiasts flip... Much water into it and then roll them up pilot position for gas.! Have a mess to clean up secret that water heaters can be very hot and! End to the position of the system, you ’ re doing tankless electric water heater ). And Home improvement enthusiasts will taste of vinegar for a few minutes strongly! Coming from the service valves the calcium other end of the ports - n't., and probably about 6 months and i use white vinegar ; two ¾ inch connection drain hoses a! Rinnai unit for the first time, and probably about 6 months overdue model in...
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