I'd call them back for some warranty work. You could do a temporary repair with underwater epoxy (Marine-Tek, PC-11, among others) but they should do a finish job. JMHO

I was under the impression that Diamond Quartz was just the premixed product that the applicator mixes with Portland Cement to form Diamondbrite. We are going through the same process in Fort Worth, and have narrowed down to Diamondbrite or possibly Quartzscapes. Pebble Sheen and Pebble-Tec (and Stonescapes Mini-Pebble) were beautiful, but just a bit too rough for our little ones' feet (and swimsuits) in our opinion. Plaster is nice, but we'd like something a little sturdier after formerly owning a white plaster-finished pool. We ARE leaning toward Diamondbrite over Quartzscapes because of: 1) the premixing quality control issue you speak of; 2) the feel of the samples (Quartzscapes is a little rougher, though not bad); 3) our Pool Builder is ambivalent, but says his applicator has had good results with Diamondbrite and he is coming around on the product; 4) the color selection is more suited to what we're looking for (grey-green) than Quartzscapes - at least in the samples we got; 5) we've seen and felt Diamondbrite in a pool and the owner has nothing but positives to say about it; and 6) I've seen a few negative reviews here or at Trouble Free Pools (can't remember which) about problems with Quartzscapes blotching or not looking like the samples, which scares me even though I have a TON of confidence in our PB. Hope some of that helps. As for the light, from what I've read elsewhere, I'd guess 1 light should be enough to light a pool of that size, though it depends on what look you're going for. For instance, I expect some shadowy areas and attenuation at the edges of the pool at night, and even prefer it.

Thanks for the reply, womanowned. I fear the state of decrepitude on the flagstone we have has forever soured me on it, so I likely would not use it in our remodel. We've owned the home and pool less than a year, but I would say the flags began to wear to the point of looking very bad years and years ago, not that we have gotten 37 years of good life out of them. Previous repairs/bad mortaring jobs indicate they have been outside their serviceable life for some time. We have a plain chlorine pool, not salt, but I don't know what all the pool has been in the past. Much of the plumbing/pumps/filter are all fairly recent, so may have been part of a previous overhaul. Might post some photos tonight just so everyone can see what 37 year old flagstone looks like. :) If anyone else has a comment about the epoxy fix, I would sure appreciate it! Thanks!

So we just had our pool resurfaced about a week ago and the finish looks overall really good. We were finally able to get in recently and I have a few areas of concern. On the bottom of the flat ends (shallow and deep) there are areas that look slightly pitted. Like the white plaster is missing around the quartz slightly. I have verified several times that it is not calcium buildup but rather missing material. These areas are slightly rough and hurt my kids feet after a while of playing around. Is this normal or what could cause it? I have verified pool chemistry with a good kit nearly daily and highest pH ever reached was 7.8 and calcium build up is not present anywhere else either. My pool finisher maintained the pool while we were out of town the first three days and the only thing I notice odd by review of our cameras was that on day one after fill they added an entire gallon of acid without testing the water at all. Is that normal? Any advice would be much appreciated as it is more uncomfortable to walk on now than before the resurface.