I have a new construction home with a sump pump draining to a sewer system in back of lot running diaginal from house. This was burried a couple feet down during construction. There was about a foot of soil added to grade the lot, so it was added after pvc was burried already. Where I want the pool seems to sit right over this area. We will need to dig down less than a foot at the high side to level the area, pretty much taking back off the added black dirt. Under about 6 to 8 inches of the black dirt is hard clay soil. Will there be any worries of the pvc green pipe collapsing from the pool? It's a 24ft by 52 inch high pool. I would think if a huge dump truck drove over it and other large equipment to grade the lot, it should be fine.. as the trench is probably 6 to 8 inches wide.. so it would be 8inches by 52 inches by 12 inches of volume evenly spread for 24ft.... figure that's about 180lbs per linear foot of weight... Does anyone know how deep these pipes usually sit? And how much gravel then dirt is used? Idk, just looking for other's opinion, and mostly experience.. of a few foot burried pvc pipe collapsing due to a swimming pool. Thanks.

Before I call the professional, what can I do to troubleshoot the jets are not working? For some reason, I felt that the water are not as hot as it used to either even though I set it to maximum heat. Any tips is appreciated.