I am currently in the process of having my dream pool installed and I am a bit concerned about the amount of slope the concrete guys put in my deck. Before the grading began, the pool builder told me that he would shoot for 1/4 an inch per foot of fall for the decking and after trolling the forums, that amount seemed reasonable. After the grading was done, the pool builder came out and marked the lines for the deck and then told me the concrete guys would show up in a few days to begin work. Before the concrete guys arrived I noticed that one of the corners looked very low so using a string and a level I found that at 12 ft straight out from the side of the pool, the grading dropped about 4 to 5 inches and in the lowest corner (Dead in the corner, 15 ft out diagonally) the drop was 7 inches. By my calculations, at 15 ft the amount of drop should be 3.75 inches not 7 inches. I immediately called my pool guy and let him know what I had found and he said he would take a look at it before the concrete was poured. A few days later the concrete guys came and did the pour and apparently did nothing to correct the problem so the measurements that I provided above for the grading are now the measurements for my finished concrete deck. Now that the concrete is dry I put my patio furniture on the corner and there is a clearly visible slope to my furniture. I have included a picture to show how my table looks sitting on my deck.
The question I have is am I being too picky? At 15 ft the amount for fall now is 7 inches, by my calculations that should be the amount of fall for around 28 ft of concrete, not 15. I am sure the pool guy is going to shoot me down on my request to fix the problem and expect me to just live with it. I am wondering if any of you folks would tolerate this sort of slope and is this normal?
Thanks for any input you can provide.