Would you Recommend Using a Leak Stop Product.

Old 11-10-13, 08:57 PM
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Would you Recommend Using a Leak Stop Product.

I designed and installed a hydronic heating system a couple years ago. It one zone with 4 loops using a TT PS 60 boiler. I have a very small leak somewhere I lose 2 psi every-other month. I don't use the auto fill valve, I add water manually. I've checked over this system 10-15 times. It's dry, so I'm thinking about trying some heating system stop-leak but, I'm concerned about the small passage for water thru the shaft of my Taco VDT circ. Has anyone used this type product with a Taco circ. Any suggestions would most appreciated. Thanks
Old 11-11-13, 08:28 AM
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Personally I wouldn't use it. Unless there's something new on the market better than what they had. It reeked havoc with the systems, plugging vents anything in its path..
Old 11-11-13, 09:41 AM
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The leak may be evaporating before it shows up?

I would try leak-detection dye first. The leak will show up when exposed by an UV lamp. Kits are available - be sure that you get the version for water, not for Freon.
Old 11-11-13, 10:05 AM
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Yeah... you don't wanna clog that thing all up with glue...

Check the schrader valve on your expansion tank.

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