header tank ball valve low ot high pressure?


Postby aph257 » Thu Apr 29, 2010 9:33 pm

the ball valve in the header tank is dripping so am going to replace it, but which do i buy a low or high pressure one? how can i tell? :?
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Postby plumbbob » Fri Apr 30, 2010 10:55 pm

All ball valves are supplied suitable for high pressure as standard. In fact, it is becoming more difficult to find low pressure ones now as they are now almost never installed.

If you think about it, you must need a high pressure valve because the tank is fed from the mains incoming water. It's only cisterns fed from the header tank that need the low pressure version which is usually only a toilet cistern.
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