stirk
Burner
I'll persevere for a while longer, I'll submerge in a pool and see where it bubbles might be a problem with my valve or rim tape.Try taking the wheel off the bike, pump it up to about 40 psi and wobble it on its sides for a while. I had the same problem on a newly mounted tyre and now it sealing fine .
I only ever light hose my bike down, never even use soap, it always looks dusty.I thought you must have been scrubbing the wheels with some kind of brush while you were washing it...