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Frequently asked questions

The Wrekin Water replacement RO storage tank holds 4 gallons.

Match the valve to the tubing on your tank connection. The P626 takes 1/4 inch tubing and the P625 takes 3/8 inch tubing. Both are John Guest valves with a 1/4 inch NPTF thread that screws into the tank.

A common sign is a tap that runs only briefly or sputters even after the tank has had time to fill. This can mean the tank's air pre-charge or internal bladder has failed.

In most cases, yes. Isolate the supply and drain the tank, unscrew the old valve, fit the new one and push the tubing in. Seal the NPTF thread with PTFE tape if needed.