We are remolding our pool with new plumbing, coping, plaster and deck.
Currently, the new plumbing is being pressured tested using water at 30psi to start.
Last reading taken about 7pm last nite is 30psi with temperature around 75 to 80 degree.
This morning's reading taken about 7am is 28psi with temperature around 65 to 70 degree.
Is it safe to attribute the 2psi drop from the temperature fluctuation with this 12hour period?
Since this is new plumbing, can we run air pressure test with shorter duration to double check?
Thank you for your suggestion!!