how do you put F4 leak sealer in via a filling loop. ?

Its losing pressure over a matter of hours, 1 + 1/2 bars over 5 hours or so, but when heating is kept on permanent, it is staying pressurised quite well. I have now found a drip coming from the boiler as well, so that will be causing loss of pressure as well. Was hoping sealer would give me at least a short term fix. Thanks for answering.

Rockchick
November 2009

If you can hear the Leak then a lorry load of leak sealer will not work save your cash and demolish the wall and fix the leak properly, F4 leak sealer is for Very small leaks only i.e pressure going down after a couple of days, it soundss like your system is loosing pressure after a couple of minuites!!

www.elanar.co.uk
November 2009