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How to Replace your Reverse Osmosis Tank

How to Replace your Reverse Osmosis Tank

Getting very little flow from your Reverse Osmosis (RO) faucet? RO tank not filling up? Or maybe the tank is full but nothing is coming out? Perhaps you keep running out of water because your tank is too small for your family? Or maybe you're wondering how long RO tanks last anyway?

Follow along today as Gary The Water Guy shares his pro tips on how to replace your Reverse Osmosis tank and keep it running optimally. 

Reverse Osmosis Drinking Water Systems offer truly amazing technology to give your family super pure drinking water, but they make water very slowly which is why the tank becomes so important -- it helps get purified drinking water to your family much more quickly.

TIP: Before proceeding with your RO tank replacement, make sure that you understand how a Reverse Osmosis Drinking Water system works first by checking out my YouTube video here


ro tank tubing

You would want to replace your RO tank if it’s no longer filling up or pushing out the water you need for your family, or if you run out of capacity too early.

PRO TIP: If you find that you get very little water from your Reverse Osmosis tank, before the flow slows to a trickle you might be able to recharge it by following the advice in another video of mine here.

IMPORTANT: Keep in mind that new RO tanks do not come with the shut off pre-installed because we don’t know what size tubing you have going to the tank.

At Water eStore, we
 have lots of tank sizes available here and the two most common shut off valves can be found here. If you’re not sure which one you need, just measure the width or diameter of your tubing with a ruler.

Once you have everything ready, you can get started on removing your old RO tank and replacing it with a new one. 


HOW TO: Remove your old RO tank.

  1. Shut off the flow to the tank.
  2. Shut off the flow of water going to your Reverse Osmosis Drinking Water system.
  3. Open the faucet to release the pressure.
  4. Place some towels under the tank as there will be a little water spilled. 
  5. Disconnect the tank from the tubing by following the procedure outlined in this video.

HOW TO: Install your new RO tank.

  1. Wrap Teflon tape around the threads, about 3 turns.
  2. Screw on the tank shut off valve.
  3. Push the tubing into the tank shut off valve and pull back to make sure that it is tight.
  4. Turn on the water to the Reverse Osmosis drinking water system and monitor it over the next couple of hours to make sure there are no leaks as the tank fills with water and pressure increases.

    PRO TIP: You can even add a second tank to your existing tank to increase flow and capacity by adding a Tee to connect them together. Just make sure you get the right size Tee for your size of tubing!


There you have it. Gary The Water Guy's simple step-by-step guide to installing a new Reverse Osmosis drinking water system tank. 

 Most of our Reverse Osmosis (RO) drinking water systems and their replacement filters and membranes are Made in USA. Whether you are looking for a small inline water filter for your Reverse Osmosis drinking water system or a full set of filters, we have what you need, all at discount prices.

We also offer replacement filters for WateriteGoldline and many other popular brands. Be sure to check out our combo and multipack filters which will save you even more by purchasing a complete set of replacement filters for your Reverse Osmosis Drinking Water System. 



For my next video on Reverse Osmosis Drinking Water Systems click here and I’ll see you there!