First prepare the surface according to can label instructions. Wait five dry days for outdoor pool, 10 dry days for indoor pool and then prepare for a condensation test. Prepare a piece of clear plastic ( 2 feet by 2 feet), Tape one piece onto deep end floor and one piece on shallow end floor. Wait 24 hours. If condensation appears, the surface has not dried completely, repeat procedure. If there is no sign of condensation, the surface is dry and ready for paint application.