HTH Swimming Pool Shock

This shock is effective for both regular weekly maintenance and as a corrective measure when your water becomes cloudy or shows signs of algae. For routine care, use it once a week to keep your pool sanitized and clear.

No, you should wait until the chlorine levels return to a safe range, typically between 1 and 4 ppm. It is best to apply the shock in the evening and test the water the following morning before allowing anyone to swim.

This calcium hypochlorite formula is powerful and effective for most standard pool types. However, if you have a vinyl liner, be sure to dissolve the granules in a bucket of water first to prevent bleaching or staining.

Yes, it is formulated to kill bacteria and prevent algae growth. If you are currently dealing with a visible algae bloom, you may need a higher dosage or a dedicated algaecide treatment alongside this shock.

The most effective method is to broadcast the granules evenly around the perimeter of the pool while the pump is running. Avoid adding it directly to the skimmer, as this can cause a dangerous reaction with other chemicals.