Ask the Expert Blog

CuLator Solves Copper Cyanurate Problems in Swimming Pools

We received a question from a customer who had purple gunk at the bottom of his swimming pool.  We suspected that he had copper cyanurate.  We had him check his CYA level which was very high.  His copper level was also very high.  High copper + High CYA = Copper
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Metals and Metal Staining Article from Aqua Magazine August 2020

Metals are naturally occurring substances found everywhere — in stone, soil and water. Rainwater, which is acidic, tends to dissolve the metals found in soil and stone, and carry them to groundwater and surface water, and thus on to hot tubs and pools when they are filled. This article will
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Swimming Pool Water Bonding

Many people believe that they don’t have to bond their swimming pool water if they have a fiberglass pool or a vinyl liner pool. However, all swimming pools are required to have bonded water. Unfortunately the way the code is written, it talks about bonding to the grid. With modern
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Questions about FillFast Pre-Filter Replacement Catridges

When you are filling your pool with city water or well water, always fill will a fresh set of FillFast CuLator Filters.  Each package comes with a pleated carbon filter to remove sediment and a CuLator filter to remove ionized metals. Here is the FillFast cartridge replacement chart:
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Bonding Swimming Pool Water – Fiberglass Pools

Please read this article on the proper bonding of swimming pools.  As we have many fiberglass pools, which no longer have metal hand rails, ladders, or lights, this is becoming a common issue. The code requires bonding of the pool water.  If your swimming pool, especially a fiberglass pool (like
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What are the little black spots in my fiberglass pool?

When you see little black spots on your fiberglass swimming pool, it could be a few things.  First, try to remove them with a vitamin C tablet.  If that doesn’t work, then have your water chemistry tested to see if you have a high phosphate level.  If you do, use
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