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Hydralic cement?
From my experience as an inground cement pool owner for 7 years. Drain it and have it sandblasted and repaint with a quality marine/pool paint. I would not recommend the paint sold at your local pool supply store. My pool is 20 x 40 and hold 40,000 gallons of water. The paint I use is from a local company that really doesn't sell to the general public. It costs me around $500 for the paint. I can paint the pool myself. The sandblasting should be done by a professional and should cost anywhere between $1,000 and $1,500. Other than that, I know of no other solution to remove paint chipping from the bottom. I had the same problem and it was causing my water to get very cloudy. I know a lot more about the paint part if you need more info and want to email me.
Just increase the acidity of the water for a couple of weeks. a lot of pool stains are the result of tannin from plants and leaves and acid neutralise's it.
Green
Just cover the bottom of the pool to keep it cool this will prevent the cement cracking
Blisters in the paint job? Poor preparation was the result of that. Drain the pool, re-prep the pool walls etc and repaint. Hmm, why did you paint the pool? Was it painted before?
Just long enough time to complete the job in as little time as possible.
form_title= Pool Paint form_header= Make your pool your dream with pool paint. What is the square footage of your pool?*= _ [50] Is your pool above ground or in ground?*= () Above Ground () In Ground What color do you want to paint your pool?*= _ [50] Do you need to remove old paint?*- () Yes () No
I should add, no chlorine in water.
here's a few more pennies... The glue preferred by pool pros for this application is Mr. Sticky's Underwater Glue. It is sticky underwater, does not become brittle, easy to work with. you can find it at mrstickys.com Well here is my 2 cents worth, I am not in the pool repair business but my pool, when it was repaired (vinyl) , The repair crew used the de-watering lines that were used to install my pool, If you have them on yours is a guess, as I do not know how high your water table is, but if they are there they should have been cut off below grade and capped in case they are needed for future problems like this, The pool company thet installed your pool, if known, should know where they are located, I hope this is of some help.
They have special paint just for pools, one that will hold up under the water. For pool steps use a non skid pool paint, or if you can not find any non skid you can add some silica sand to the paint container. Any Paint supply store should have it and some homecenters.
If the water's chemistry is not correctly balanced, it can. For example, if your pH is too low, the water can etch cement you'd materials.