Finding very slow gas leak

[cjmurphy87]

I recently installed a 3 way gas manifold to take my keezer from 1 to 3 taps.

I have installed a ball-lock gas post on the manifold so I can remove my tank and regulator and use them for closed transfers, purging kegs, etc.

I initially sprayed all fittings, and joints with starsan to check for leaks, and nothing bubbled. Retesting recently gives the same result.

However, if I pressurize the lines and manifold to serving pressure, and disconnect the tank, the manifold loses pressure after about 48 hrs.

Anyone got any tricks for finding such a slow leak?

 

[day_trippr]

Slow leaks can be a ***** to find but dunking as much assembly as you can is a huge help.
There were four (different) leaks in this assembly. I don't even want to ponder how long it'd have taken (if ever!) to find them without dunking...

Cheers!

 

[cjmurphy87]

Submerging it occurred to me right after posting. Thanks!