I bought the tank test kit from Vans to get the fittings to make testing easier. I needed a second cap fitting since I included the return line fittings on my tank.
I taped a balloon to the vent line and inflated the balloon. The balloon acts as a pressure leak valve. The tank cannot be pressurized higher than the balloon can handle.
Here is a video of the test:
I found two small leaks, the rear baffle, and near the filler neck. Luckily, both can be accessed from the filler neck. I never would have found the one by the filler neck if I had taped over it with packing tape as suggested by Van's.
Just to the right of the reflection below, you can see the sealant bead sag a bit, which is where it leaked.
Here is a close up of the sag.
I set up to put a large filet on this area with an extra long popsicle stick I made by taping together several other popsicle sticks.
Here is the new fillet. Kind of messy, but will hopefully get the job done.
As a random thing to do, Peter helped me get the inspection panels ready to go.
