I just called your phone # and was told to send an email to u. I would like to have my pool closed and I have a problem with algae ( water dark green ). I would like to know if u can clear up water and then close pool. Pool is 25,000 gal in grd, salt water, sand(zeo Brite) filter. And what would the cost be? Friends of mine are customers of your company and recommended your co. They live in the Masspequa area and we live in North Bellmore.