HTH, Cal Hypo Granules Pool Shock Treatment
Cal Hypo Granules/Shock
HTH 70% Granular provides effective and reliable chlorination economically. It kills algae and bacteria instantly on contact. It can be used as routine daily maintenance or as a shock treatment.
HTH 70% Granular can be used as a shock treatment by simply adding 3 x the normal dosage.
Shock treat your pool once a month or in extreme conditions.
Only enter the pool when the chlorine residual is <3ppm.