Although I - unfortunately very premature - have the sand previously praised, I can only advise any of the purchase! This complements the numerous reports of other customers who have also had bad experiences with this sand. This too fine and schlämmende sand has me ultimately not only to the pool floor littered and permanently clouded with sand the water (despite several pool cleaning and backwashing) but after a few weeks of operation also meant that the pressure vessel of my sand filter system has burst! The filter system ran for several years without any problems (with sand from the dealer) and I curse the day when I have decided to order this Sand online! So I am now forced to buy a new filter system if I do not get individual pressure vessel. That's highly annoying!