Jack’s Magic Stain ID Kit and Periodic Products No-Drain Metal Stain Eliminator Kit

Pool Stain Eliminator Kits

Here is a question we were asked by Glenn in Orlando:

In the past, I used “Jack’s” stain test kit. With that kit, I needed to use their “O2 Safe Shock” in addition to the copper stain remover, in order to get a reaction.
Will your stain remover kit work for copper without this added product?

Good question!  If you have a fresh stain, our No-Drain Metal Stain Eliminator Kit will work on removing the iron and copper stains and eliminating the metals from your pool water.  If you have had a stain for a long time, your stain may be calcified over and then you need to do a treatment like the Jack’s Magic “O2 Safe Shock” to remove the calcium layer and THEN do the stain treatment.

Don’t forget that when doing our stain treatment, you don’t have to do a stain test kit first because we have both types of stain treatments to remove iron stains and copper stains from your swimming pool surface.

The most important part of doing a stain treatment is to remember there are three parts:

  1. Treat and remove the metal stain
  2. Sequester the metals in the water
  3. Eliminate the metals with CuLator Metal Eliminator

pool stain treatment

Solution To The Staining Issue With Island Sapphire Breeze Tile From NPT

By Gary Martin – Pool Corp – Building Material Specialist – SW Florida



We have had some issues with our NPT tile Island Sapphire Breeze. Part number GMI-37-0056.
In some instances the tile has turned black under the water line. This black look will not scrub off. This particular tile has a small metallic content.

The metallic content in the tile is reacting chemically when Manganese is present in the pool water causing the tile to turn black.

Manganese is a metal that causes staining. It can appear in pool water especially when the pool has been filled with well water or other rural source. Manganese can discolor the water coffee-brown, rose or purple and can stain the pool surface these same colors. In Florida our well water is coming from the aquifer underground. Many municipalities also get their tap water from the aquifer. Manganese is becoming more prevalent in our aquifer and in your pool water.

To solve the “black tile” issue there is a new and successful process. A kit is available from Periodic Products, Pool Corp Vendor 119684. This kit contains everything needed to treat up to a 20,000 gallon pool. The kit works in fresh and salt water pools and is safe for all pool surfaces. SKU: PEP-50-0012 Metal Stain Eliminator Kit. This kit contains the chemicals used to remove the staining, sequester all metals and a CuLator PowerPak 4.0 that removes the manganese and other metals from the water.

Topping off the pool with water over time will slowly add manganese back into the water. It is suggested to use a regular dose of a sequestering agent along with either SKU: PEP-50-0000 Power Pak 1.0 (CuLator PowerPak 1.0) or SKU: PEP-50-0009 Power Pak 4.0 (CuLator Ultra PowerPak 4.0) every 6 months to remove any manganese from the water. If the manganese level is allowed to build back up in the pool water the staining of the tile will reoccur.

Manganese levels in the pool water can be tested for with a specialized test kit. Unfortunately there are not many available and the reliable test kits available are quite expensive. Staining begins when manganese levels in pool water reach .3 ppm.

All of the products from Periodic Products come with very precise instructions and are easy to follow. The pool water needs to be balanced. The chlorine level is lowered to 1 ppm or less. This can be accomplished by using Sodium Thiosulfate such as Jack’s Magic’s After Shock. Raise the water level in the pool so the stains on the tile are under water. From the Metal Stain Eliminator Kit you add the Ascorbic Acid powder then the Citric Acid powder. Next add the Metal Sequester liquid. Allow the pool to circulate for 1 hour. Shut the pump down allowing the water to sit overnight. The next day turn on the pump, check and balance the pH and place the Ultra PowerPak 4.0 cartridge into the pump basket. This cartridge will collect the manganese and later be discarded.

The No-Drain Metal Stain Eliminator Kit will remove Manganese from pool water but will also remove Copper, Iron Cobalt, Nickel, Silver and Lead.

Print Gary Martin’s Guide

Before CuLator and After CuLator

Fiberglass pool treated with NO-DRAIN Metal Stain Eliminator Kit and CuLator Metal Eliminator


Here are images from a customer who used a No Drain Metal Stain Eliminator Kit on an in-ground fiberglass pool.  The pool was completely stained, but the stains were lifted, sequestered, and eliminated with a CuLator Ultra 4.0


What is interesting about this pool is that we noticed that there is no metal touching the water.  So, we asked the pool owner if the water was bonded (which equalizes the electrical potential) and he found out that his water was NOT bonded.  Once he bonded the water, his metals were not immediately plating out onto the surface.

You not only have ground your pool equipment, you must also bond the water.  Yes, these are two different musts.  Many new fiberglass pools are not bonded.  Please check your pool!

Here is a great site about Pool Water Bonding.