On Wed, 31 Aug 2011 15:07:38 +0000, AL_n wrote:
Can some recommend one, in particular, or advise of any types that
should be avoided? I want something that is as maintenance-free as
possible, because it's a real pain to access, being in an awkward corner
of the loft.
The hole in my header thank is about 1" diameter,and the threaded
portion of the valve is about 7/8" diameter, and then reduces down to
the usual thread diameter as found on compression fittings for a 15mm
pipe.
Are plastic valves (diaphragm type) suitable?
The small plastic Torbeck valves should probably be avoided. They are
good, but if the filter fails (which seems to happen after a while), the
slightest bit of grit will make them fail open (or closed!).
To be honest, the basic brass one you have is probably the safest.
--
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