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.
If the alkaline is low, try add baking soda to the skimmer in the morning. You could also add alkaline increaser or alkaline up if you dont want to use baking soda. Keeping a pH reading around 7.4 and 7.6 is the best level for your swimming pool. It is easiest on your eyes and the pool parts and equipment.