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Cast Iron Radiator Air Vent Leaking

TOCL&H
3 months ago

I have on an old style (early 1900's) cast iron radiator. The air vent valve has a crack in it and it's leaking water. I have two questions...


1--I was told I would need to replace the valve with a new 1/8" valve. Any tips on draining my system/isolating a radiator? I could really use a good tutorial on this.


2--Instead of replacing the valve, I'm wondering if I can put some type of a patch on the leaking valve. I tried JB Weld with no luck. Does anyone have a product that would work for this type of leak?







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