DryTec 367 Calcium Hypochlorite Pool Shock, 1-Pack
- ...e best results use Super Shock at night in order to prevent the sun from eating up the shock since it is not stabilized.
- it’s best to shock when the sun isn’t out for maximum performance. Do not swim for 8 to 10 hours after application..
- POOL CHLORINE SHOCK - Maintain your swimming pool or spa with reliable pool chemicals and treatment supplies that you can depend on from Rx Clear. The Rx Clear brand is the premier choice for a trusted cleaning product to keep your pool in its best shape..