great site here. I already got some great info from here. I live in North jersey and have a small 14x28 basic rectangle ig pool (4 years old). Was able to get it 8 foot deep but had to settle for a shorter shallow end because of it. Have been opening and closing it myself for the past 3 years, couldnt see spending 350-400 dollars to pay for someone to do it. This year was the first year I had some algea, not alot but enough to cover the bottom. Had a problem getting a chlorine reading until I came here(thanks for the great info) I was a little skeptic on using bleach until I read it here and it worked great.