When we purchased the house, the seller said the pool had recently been refinished. The house was a foreclosure and was vacant for at least a year prior to being rehabbed. Our only experience has been with a vinyl liner pool (2001-2004) so I don't know what to expect with a concrete pool. We've been in the house a year now and the finish looks splotchy and old.
What type of finish is it? Does there appear to be anything wrong with it other than the splotchiness? I can't really tell if it always looked like this because it was impossible to take baseline pictures until I recently got a GoPro. We keep looking at the finish and saying to ourselves, "Did that streak used to be there?" It seems like there are more black specks in the finish than was there originally but I have no way of knowing for sure. Before TFP, I was using the chlorine tabs from Clorox and I was pretty good about keeping my pH in the mid to high 7's and my TA about 100-110. Our CH is always around 250-300.
I think I caused some color change near the main drain from powdered shock (back in my pre-TFP days). I don't really care if it is splotchy. I just want to make sure it is sound.
The bottom of my pool looks dirty in these pictures but it's not! It got a good brushing this morning and the water is nice and clear.