GLB Drop N' Vac Flocculant - 1 Qt. Type_Oxidizer and Marino

and Marino

Effective over wide pH range

the slimy bacterial layer that forms deep inside the plumbing where your sanitizer can't reach

If below add more SoftSwim B

vacuuming the pool and backwashing the filter

GLB Drop N' Vac Flocculant - 1 Qt. Type_Oxidizer and MarinoGLB Drop N' Vac Flocculant 1 Qt. Overview GLB Drop n' Vac is a non alum flocculant that settles floating debris and material the filter can't get, such as microparticles and dead algae, to the bottom of the pool. This product works overnight and allows for easy debris removal by vacuum. It has been recently reformulated to work over a wider pH range. It also now contains a clarifier. Drop n' Vac is safe for all pools and in conjunction with peroxide