Stephen Fasham wrote:
Can I use 1/4 turn ball valves in place of gate valves for my CH/HW
system. My previous experiences with gate valves suggest that seepage
past (when in the closed position) is a problem. I would like to be
able to turn-off the feeds to each bathroom for hot and cold water.
Ball valves look quicker to use, but I don't know if there is any
reason I should avoid them for this purpose.

I've used full bore ball valves all over the place in our CH. I think
they're great. It's really handy to be able to isolate bits of the
system, without any loss of flow.

--
Grunff