HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal C

About this product

HTH Pool Care Shock Advanced is a calcium hypochlorite-based formula designed to quickly kill bacteria, destroy algae, and restore crystal clarity in residential swimming pools. It is intended for pool owners who need a fast-acting sanitizer to maintain water safety and cleanliness during regular maintenance or heavy use periods.

Best for

Routine deep sanitization for chlorinated residential swimming pools.

What works well

• ✓Fast-dissolving cal-hypo formula acts quickly to clear cloudy pool water
• ✓Effectively kills stubborn bacteria and eliminates various types of algae
• ✓Restores sparkling water clarity without significantly increasing stabilizer levels

Worth knowing

• iRaises calcium hardness levels over time with repeated use
• iRequires pre-dissolving or careful application to prevent pool liner bleaching

Bottom line

It is great for fast sanitization, but avoid overuse if your pool already has high calcium hardness.