In article ,
Moz wrote:
About 40 years ago my Dad pressure tested a DIY plumbing installation
using a car tyre valve (soldered somehow into a 1/2 inch BSP
compression fitting), a foot pump and a car engine compression gauge.
After filling the system with compressed air he left it overnight and
checked for pressure drop.
Does anyone know if this would be an appropriate way to test a plastic
(JG Speedfit) central heating system prior to filling (the gas fitter
is coming to fit the boiler on Tuesday)? I can seal off the open ends.

If you get a 'high speed' valve, these are held in place by a nut with
rubber washers either side rather than the pull through rubber type. Drill
a stop end and fit it to that. A place selling aftermarket alloy wheels
should have them. When I installed my heating I used this idea with two
pick up points for an in and gauge. Once happy there were no leaks
replaced them with plain stop ends.

--
*Bills travel through the mail at twice the speed of cheques *

Dave Plowman London SW
To e-mail, change noise into sound.