I have an Aqua-Therm 145. The inline pump has a a "screw" for opening and closing the flange on the pump. Last week or two I've been dropping pressure (16 psi down to 10) over the course of a couple days. I've refilled and tried to bleed any air from the system but pressure still drops. So I started looking at everything closely and there is a bit of water in the hole on top of the pump where the screw is, plus a little bit of steam coming off it. So I think it's leaking right there and evaporating off so no obvious signs of leaking or dripping water.
Does this screw have an o ring or gasket that might be bad and can be replaced, or can the whole screw be replaced, assuming it screws all the way out? Thanks
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Topic: Leak on pump (Read 1352 times)