Storage tanks should be replaced when the bladder inside the tank won’t push the water out of the storage tank through the RO faucet any longer. To find out if the storage tank should be replaced, pick the storage tank up. If the storage tank feels full then turn on the RO faucet and about 2 gallons of water should come out of the RO faucet in a strong steady stream. If the storage tank is full and only a small amount of water comes out of the RO faucet then the storage tank should be replaced with a new storage tank or the storage tank should be re-inflated. (See WaterProBill blog on how to re-inflate a RO storage tank.)
To replace a RO storage tank:
- Turn off the feed water supply valve
- Turn RO faucet on.
- Disconnect RO storage tank tube from the tee on the inline carbon filter.
- Turn on the storage tank valve to drain as much water as possible out of the storage tank into the sink.
- Remove the storage tank ball valve and tube from the old storage tank.
- Put Teflon tape on the threads of the new storage tank.
- Put the ball valve and tube on the new storage tank.
- Reconnect the storage tank tube to the tee.
- Turn the feed water supply valve on.
- Check for leaks.
- Turn off the RO faucet.
- Allow the storage tank to fill with water. This will take about 2 hours.
- Turn on the RO faucet to release the trapped air in the system.
For more information visit Water Pro.
