I am preparing to paint the inside of my pool with an epoxy based paint. I have just finished scraping all the loose/bad plaster from the surface of my pool and there are allot of large (up to 1.5 foot square) areas which need to be patched. All together we removed about two car washing sized buckets of plaster from the pool. I used something called "patch-it", made by "Leslie's pool supplies", which is designed for above and under water patching to patch some of the first flaky spots I found. The patch-it dries very quickly, and I'm concerned about being able to apply it to such large areas before it starts to set. Just to give you an idea, it starts to harden as soon as it is mixed and is unusable within about 2-4 minutes, depending on how wet you mix it.
What I'm wondering is, should I just fill the scraped out areas in the pool with regular pool plaster before I paint? I'm assuming standard pool plaster would set less quickly. This seems to be a safe and logical thing to do, but some advice from someone with more experience would make me feel allot better.
Can anyone help?