I have loads of the 1/4 turn in-line 15mm isolators that I was going to fit to all the taps etc as i'm re-plumbing the bathroom, however looking at one they seem to narrow from the 15mm of the pipe to 10mm or so where the ball valve is.
So would it be a bad idea to fit these to the bath taps since they may slow down the filling of a bath? I have a gravity fed HW system but am looking in 1 or 2 years to upgrade to a combi-boiler which I believe runs off mains pressure.
Buy full bore valves like these or it's 22mm equivalent for the bath
They'll slow down a 15mm low pressure feed too - best to use full bore ones of the correct size for the pipe.
Many would call that a downgrade.
Th
The reduced bore may well slow down the filling of the bath - but that will be a good thing as it will prepare your the family for the even slower filling you will get when you do your combi downgrade.
Are they really that bad? I rarely use the bath neither does my girlfriend so would this be a good choice for CH / showers, wahsing up and to save money since my boiler is 10-20yr old I guess the efficiency is around 60% and a new one upto 95%?
RE the taps I also had bought 15mm flexi connectors that go to the bath tap size fitting and used that as well as the isolators - flow from the tap seems adequate but certainly not fast - the water's not gushing out though don't know how long it would take to fill the bath? The supply pipe is only 15mm as well which I guess may not be ideal...
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