Originally Posted by paddlers
With regard to pressures they were spot on prior to putting it in the sea & I didn't top them up as I'm more concerned about the thing blowing a seam when it's sat on the beach in the sun which it did for two weeks when not used !!!!
It can be an issue. I partially deflate my RIB when it comes out of the water on a sunny day.
I have an on-board electric pump, and top the tubes off to working pressure after splashing the boat.
FWIW, I bought some OP valves a while back, but haven't gotten around to having them fitted.