Pool Plaster staining information page

Here are some things to try that have worked for me on simple stains. I do not however recomend trying this on dye color Pool Plasters!

I'll cover rust stain removal
Muratic acid and how it can be help when used properly!
Stainless steal brushes are also a good tool
*Please Email us* if your not sure about your Pools Plaster Problem
I have had some great letters and hope i was helpful to you. Thanks John at jgot.com

A Pool owner information page! We will cover all of the ways i know to get out staining. With over twenty years of pool plastering! I have seen Many things effect pool plaster. Lack of brushing is a good way for dirt and leaves or just plain algies to form and attack your finish! For easy to get out rust stains or other surface staining. you will need a 5-6 foot piece of pvc. pipe. A stainless brush and muratic acid.

(WARNING) Do not try this on (plain marcite)

may harm finish! Use on exposed quartz or pebble finishes. Hold pvc. pipe in water with end of pipe just above the stain. Pour about a quarter gallon of muratic acid into pipe. Wait 25-30 seconds for acid to flow through pipe. Acid is heavier than water and will come out of pipe on stained area. When you see this happen. Slowly remove pipe. And brush right away with your stainless steal brush on the stain. Try 2-3 times if stain doesint come out the first time. A minor and stain thats not real old stain should come out. Dont forget to balance your water. This is not used on dye mixed plasters! Now..plumis stones work great also. For roughness or minor stains try diving in and hitting the stain with a plumis stone. Found at most pool stores. They should also carry pool stain treatments. BUT! dont go crazy with Chem's. to take out staining. You may have to pump down the pool and try a mild acid wash. It all depends on what type of staining.

(WARNING) depending on your local, ground water maybe a big problem! Make sure you contact a Lic. pool contractor before you try to pump down your pool.

Graying is another problem that can really cause an eye sore! We in the plaster and concrete world call this moisture intrapment. Caused by an uneven curing of the pool plaster or cement. What i have found to be a great help in cutting down this problem. We plaster 500-600 pools yearly. Our rate of pools that gray is 9-12 pools a year. Compared to 20 three years ago. Your pool concrete shell acts like a sponge if you will. In our state of florida the water table is very high in areas. Causing pool shells to absorb water from under the pool shell. Plastering over a wet shell with an uneven suction rate can cause pools to turn black! in some cases. We have reaserched our records and found that pools that are not what i call water holes. That dry evenly wont gray in most cases.

Get the contractor to have the pool dry.

Before it gets the the pool finish or pool plaster installed. Its a great help! Even though we plaster in Florida. If the (temp) is under 56* we wont plaster! Cool winds and temps only mean more excelarater. A great way for checking (small cracking) to occure at night when the pool is filling or need be left until the next day.

Here are some helpfull links.

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