Hi Raddish, sounds like it is all going well. Good luck with the coping and top rails this evening.

I agree Matt on both points. Above ground pool fittings should never need caulking. It just makes a mess when it comes time to change the liner.

There is a trend for oval liners to be short on the ends and wide from side to side. But vinyl stretches so easily it does not have to be a problem.

Later, Dennis