This is our first season owning a pool (came with the house we bought). After opening and running the pool for a week we started to notice stains that, with the help of this forum, we determined to be from metals in the water. After lowering the ph and chlorine we used a metal out product and ascorbic acid to get rid of the stains. The ph is now back to about 7.2 but I am confused about how to go about raising the chlorine level back up since I have seen several posts about not shocking for 2 weeks. What is the best way to do this and avoid getting algae in the process? The pool store suggested a non chlorine shock? Just don't want to leave the chlorine level low for too long...any help is appreciated!