My AGP came with a 1.5 hp 2 speed pump. I've been running it on high 24x7 since it was filled. Mostly cuz I'm terrified of things going bad. My pool is sparkling and passing oclt. But I'm thinking that's due to being less than 2 weeks old and not that I've mastered BBB (but I'm sure trying!). If I switch to low speed and continue running all day and things go south, would it happen slowly so I can stay in front of a problem or could I be up a creek overnight? Thx!