I have a good friend that just had a new gunite pool installed in Feb of this year. The contractor never really told the owners what to do once the pool was filled with water and they have done their best to keep chems in check but now it appears that they have a major calcium issue. He called me the yesterday to look at his filter and it looked like cement and was heavy as ****. He called the contractor and the company that did the finish and they both said calcium. The company that installed the finish said it's common on dark colored finishes, not sure how true that is. He also suggested they drain half the pool and refill and balance chemicals.
Seeing that the calcium is on much of the tile, that needs to be removed as well as anything stuck to the walls and floor as I'm sure it's on there. I've researched and it looks like maybe a no drain acid wash would clear up the problem. I also found a product Beautec that is supposed to help as well. I have searched and see others here have used this product in the past but wanted to see if others are still currently using it.
As for their chems in the pool, well they took their water samples into a store that has penny's in their name and they never really helped them other then selling them baking soda at high price.
They want me to help them out as the contractor and finish company aren't doing much. So is an no drain acid wash a good idea? I don't want to be too aggressive but they need help with this.
Anything I should keep my eye on during this process? The pool is about 7,000 gals.