I apologize in advance for the lack of information but I was hoping someone could give me a run through of what I need for my pool. I have an 18x36 IG pool vinyl liner with Aquarite Salt System installed in 2008. When I bought my house all the previous owner told me was keep my salt levels around 2700-3200 and backwash/rinse weekly. I don't have any test kits & honestly have no idea what kind to buy. We haven't had any problems with the pool until we were out of town last week. We live in north Georgia and temps were in the low 80's most of the week with no rain. When I got back on Sunday my salt level was 1600 and the pool had greenish yellow slime on the sides and bottom (I'm assuming this is mustard algae) I called a pool company and they told me to add two bottles of shock, put a chlorine tablet in the skimmer, let the pump run all night and bring a sample by in the morning if the pool starts to clear up. They told me at this point it will not do any good to add salt because our temps are in the mid 60s. I'm just trying to clear up whatever is going on so I can get the pool closed. Since we started having this problem I've read that I should be shocking weekly and I haven't done this since we bought the house. We have a sand filter and I have no idea where to even look for the cell to clean it out but my light is flashing to check it. I fee like a complete idiot with this pool ?