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Crown Boiler AWI095 loses water pressure
I have an existing crown boiler that loses pressure
Its very close to zero then when system turns on goes up to between 5-10psi but very shortly drops back down close to 0. I add water and pressure comes up to 15+ but within a day or so its back down to 0.
I have a pressure reglator coming from the supply and an expansion tank bladder style. I checked the pressure in the tank and its right at 12ish psi. I am not and have not seen any water leaking any where and no relief valve discharge....
a few questions
1. do I need to turn off supply to check exp tank
2. I do have a auto bleeder at "top" of the run
TIA [email protected]