No Mor Problems algaecide is your ticket to an algae-free swimming pool. This patented formula is a preventive algaecide as well as a clarifier. That means that No Mor Problems will work to inhibit the growth of algae in your pool while also promoting clear, sparkling water. No Mor Problems inhibits algae growth while clarifying water and preventing staining. Will not affect the pool's water balance. Patented formula is registered as an E.P.A. swimming pool algaecide. Safe and powerful liquid algaecide works on all types of algae in your pool! Safe for all swimming pool surfaces, even paint! Reduces the need to use powdered shock, which when overused can cause tile and metal erosion in your swimming pool, and skin and eye irritation to swimmers. Contains a clarifier to prevent dull water and extend filter cycles on ALL filter types.