Hi,
I am in the UK, South west.
I am replumbing my garden tap since the nonreturn valve integrated inside the tap is no longer working and the current regulations require the valve to be inside the building anyways.
I have bought a double check valve from B&Q. Questions:
- Can it bt fit in any position i.e horizontal or vertical. If vertical is ok, is a downward direction of flow better than upward?
- I am going to fit a stopcock inside to shut off the garden tap if freezing is likely; should the double check valve be on the supply side or the tap side of the stop c*ck? Any difference?
- The plumbing branches off from a feed to a utility sink. I want to incorporate an isolation valve before the sink. Do these valves affect the water pressure too much (with the garden tap in mind)? Am I splitting hairs?
I have looked for these information but no luck so far. The other responses in this group are very good. *Any* help from anyone will be much appreciated.
Thanks Ramendra