We are (what we thought was) in the home stretch of our pool being finished. We are end of August right now and live near Washington, DC, and were really hoping our pool would be finished by Sept. 1. Doesn't look like that will happen now. since we have run into subcontractor decking complications with work schedule and material. My question is if we open the pool for a few weeks end of September and then pretty much close it within a couple of weeks is that ok for PebbleSheen finish? Is it better to try and keep it open as long as possible? I am not sure why I am worried about this but something in my gut is telling me to ask this question.