we just moved into our renovated house and also installed a megaflo type system with all hot water at mains pressure. Our system has 2 expansion small tanks for the experts here. I have noticed that the garden tap seems to be fed directly from the mains which is good. However the same is not true for the kitchen tap. I have proven this by turning off a stopcock and the garden water stops running cold water and vice versa with another stopcock and the kitchen tap (kitchen stops, garden running water).
The extra kitchen connection/ diversion, may just be a balancer as I can see that the kitchen's cold water supply stops short from going into the expansion tank. But am worried that our water is contaminated as not directly from the mains.
Is this normal and should I worry about it? Thank you!
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