If you put a tap in front of the RO unit it would only be running if you had the tap on.
My tanks are around 50 litres so emptying them is unfortunately a bit time consuming. I am wondering how they would do it in a commercial anodise shop where the tanks are much bigger still. They must connect a clean source of water to the tank somehow.
I think in the dicussion I have become a bit clearer as to what I am asking - should you drain the tank and then pour in clean water or can you just add some clean water each day to dilute contamates in the tank?
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