20g chlorine tablets that have a significantly higher pH than other tablets (ie they are significantly less acidic) and so dramatically reduce the risk of acid damage to your hot tub seals and equipment. 1Kg.
Prior to using tis product adjust the PH levels to the ideal range of 7.2 - 7.6 to promote bather comfort,and protection of spa plant equipment and effective chemical use.
As they release chlorine relatively slowly it may be necessary to shock dose or oxidise prior to their use to first establish some chlorine more rapidly. Ideal chlorine levels are between pools 1-3 mg/1 (ppm) spas 3-5 mg/1 (ppm) as tested by a test kit or strips.
IMPORTANT – DO NOT ADD DIRECTLY TO A SPA AND ALWAYS USE A CLEAN APPLICATOR AS BELOW WITH NO OTHER PRODUCTS PRESENT.
*Freshly filled new spas or spas left drained for a period of time require an initial start up dose of 20mg/l (ppm) of free chlorine circulated for a minimum of 21⁄2 hours.