UK Plumber Forum

[Best]

Have you ever used leak sealers on heating systems, - and what are your choice and opinions?
I see CT1 Miracle Seal claims to seal leaks instantly

[Croppie]

I saw that demonstrated at PHEX in Belfast. Dead impressive. ....

[SimonG]

Not a fan of leak sealer. Seems to me it's masking a bigger issue that will come back to bite you.

Plus if it's a combi then what does it do to diverters, plate heat exchangers etc.

[Best]

Not a fan of leak sealer. Seems to me it's masking a bigger issue that will come back to bite you.

Plus if it's a combi then what does it do to diverters, plate heat exchangers etc.

I am totally with you that. I have and would only ever use leak sealers where there is no choice, such as when an old system has a boiler or inaccessible pipes leaking and the leak sealer buys time to keep the heating working until new install.
But good to know what is available that actually works and probably keep a bottle of it as spare.
The CT1 Miracle sealer I notice claims to not clog anything -
"MIRACLE SEAL is a water-based suspension of nonclogging
particles, anti-corrosion and lubricating additives."
It also claims to have no detrimental effect whatsoever on mechanical components.

[REDSAW]

did a house renovation job last year, new boiler and rads.
the pipes ran every where under floors down stairs.
it kept loosing pressure and the last resort was rip every thing up!!
put in a bottle of leak sealer and it slowed, 2nd week another bottle then it stopped after 3 days and kept pressure.
the house then went up for sale.
sorted