In light of its measly $1.2 million price tag the film's quality relative to bigger-budget horror films is striking.
It depends on the size of the pool. A normal size pool should have at least 2 skimmers. It depends on the size of the pool. A normal size pool should have at least 2 skimmers.
Before adding shock to the pool skimmer you will first want to back wash your pool filter and remove all of the air from the filter system. Usually you will add powered or granular pool shock through the skimmer. Liquid pool shock can be poured directly into the swimming pool in most cases.