Swimline RipStopper 33' Round Above Ground Winter Pool Cover, 4' Overlap, Green/Black | RIG33 Pool Brushes will turn sample to pink

will turn sample to pink if free chlorine is present

Flexing design enables vacuum to fit the contour of your pool or spa

and Caldera Spas use a 5-filter system: one (1) large primary filter and four (4) smaller secondary filters

If algae is still visible repeat dose (steps 3 & 4) as necessary until pool is free of visible algae

Note: If foaming becomes excessive

Swimline RipStopper 33' Round Above Ground Winter Pool Cover, 4' Overlap, Green/Black | RIG33 Pool Brushes will turn sample to pinkSwimline Ripstopper Winter Cover is the ultimate winter cover. It is durable, dependable and built to last. If your cover gets a hole or a puncture, no need to worry, this cover will not rip or tear. Constructed of woven polyethylene fabric, the pool cover is time tested and is sure to last a few years. This tightly woven solid cover material is made from a super strong polyethylene with an 12 x 12 filament scrim to resist the harsh winter weather.