HTH Spa Oxytabs are quick-dissolving active oxygen, perfect as a shock treatment for use with chlorine or bromine.  Each 20g tablet treats 2000 litres of water.  Add 1 tablet to the water after each use and every four days.

Instructions
Start-up and regular treatment:  Every 4 days, place 1 HTH Spa Oxytab tablet (per 2000 litres)  in the skimmer or a floating diffuser.  Keep the pH between 7.0 and 7.4.

After each time you use the spa:  add 1 HTH Spa Oxytabs (per 2000 litres of of water) to the skimmer or in a floating diffuser.  If the spa is being used intensively, you can double the dose.

Compatible with chlorine.

Caution: Do not put the product directly into the spa.  Put the tablets in the skimmer basket, or in a floating dispenser.  Not compatible with PHMB-based products.