Did a lot of searching without a good answer - maybe you guys can help!
I'm putting together a new heating system for the house, based on a Trinity boiler with seperate loops for house heat and an indirect water heater. I've assembled the boiler, circulators, relief valves, fill valve, etc etc on a 48x48 board on my workbench for testing. Not wishing to use water yet, I pumped in air up to 25 psi though a bleeder. I was able to find and fix a couple of leaks by soap bubbles or by the faint high-pitched noise. Now I'm down to tiny leaks that make no audible noise, and blow bubbles too slowly to notice. The pressure bleeds down maybe one psi per day, so I still have leaks.
An expensive ultrasonic leak detector would work, if I could afford it. How else can I find the leaks? I see there are smoke bombs made more for sewer systems - a vendor didn't think it would work here. Would oil of wintergreen work? I'm trying to imagine how to put the stuff into the system without stinking up the whole shop!
Any other ideas?
I'm putting together a new heating system for the house, based on a Trinity boiler with seperate loops for house heat and an indirect water heater. I've assembled the boiler, circulators, relief valves, fill valve, etc etc on a 48x48 board on my workbench for testing. Not wishing to use water yet, I pumped in air up to 25 psi though a bleeder. I was able to find and fix a couple of leaks by soap bubbles or by the faint high-pitched noise. Now I'm down to tiny leaks that make no audible noise, and blow bubbles too slowly to notice. The pressure bleeds down maybe one psi per day, so I still have leaks.
An expensive ultrasonic leak detector would work, if I could afford it. How else can I find the leaks? I see there are smoke bombs made more for sewer systems - a vendor didn't think it would work here. Would oil of wintergreen work? I'm trying to imagine how to put the stuff into the system without stinking up the whole shop!
Any other ideas?