Hi Im Debby and we bought a house and inherited a pool. We did not take it down we just covered it. We don't know how to get it ready for summer. It is a salt water filter and are we suppose to add salt as if it is a new start up? We didn't think so and we just added enough salt like the book said for a pool already with salt. The pool is still green. The readings I have are... copper 0.2, chlorine is low 0.5, ph is low 6.8, and alkalinity is low 40. We are totally new at this! I want to take it down 