FROG Serene Bromine Cartridge (150 gm)

• Each cartridge lasts between 2-4 weeks depending on spa use and size.

Using the In-Line Spa System:

• With a freshly filled spa establish a bromine or chlorine residual of 1-2 ppm in the spa with an EPA approved spa shock or by other means by following directions of that product before using cartridges.
• For the first 24 hours, set the Spa Frog Bromine Cartridge at number 3 by holding the bottom and turning the top until the number 3 appears in the setting window.
• To Install: Open cap of in-line system. Snap cartridge into "Bromine Only" section. Make sure to line up indent on cartridge with raised line on holder. After cartridge is snapped in, replace holder by lining up arrow on holder with arrow on system lip, push down and lock in place. Replace cap. Initially monitor bromine levels daily until a 2-4 ppm residual is achieved. Remove and adjust to maintain bromine levels depending on spa size and use.

Using the Floating Spa System:

• With a freshly filled spa establish a bromine or chlorine residual of 1-2 ppm in the spa with an EPA approved spa shock or by other means by following directions of that product before using cartridge.
• For the first 24 hours set the Spa Frog Bromine Cartridge at number 5 by holding the bottom and turning the top until the number 5 appears in the setting window.
• Push the cartridge into the bottom opening of the Floating Spa System.
• Set entire system in the spa water.
• Initially monitor bromine levels daily until a 2-4 ppm residual is achieved.
• Then adjust to maintain bromine level depending on spa size and use.