Hello
Last year I converted our heating system from vented to sealed (ie no header tank).
Everything works fine with the sole exception of slow pressure loss, losing
1 bar over a period of about 3 months. I have checked every visible valve and compression joint for leaks with no joy, so I can only assume I have some kind of invisible "nano-leak". It's no great bother but I would like to fix it.Question: Is the "Sentinel" leak sealer as sold by BES any cop? Will it solve my problem? Could it create any other problems?
David