I just have plain concrete around my 18 x 36 IG pool. I want to add some color to the concrete around the first section of concrete, which comes out about 3 ft from my pool. There are a couple of guys that have ads in the paper for concrete work so I called them. One guy said he could lay over the existing concrete and put a pebble tec like finish for $3+ per sq ft or he could make it look like flagstone for around $7+ per sq ft. The other guys I talked to said if you lay over the top of the old concrete with a thin coating like that it will crack and won't hold up. Has anybody had this done? If so, I would love to see some pictures and hear your results.