Begin assembly today. My plan Is in jeopardy. Seems the 1 1/2” spa flex tubing is not fitting snug into the schedule 40 parts. I have never had this problem working with other sizes of this tubing. So disappointing because now I have to completely rework the plan. I don’t want to hard pipe everything because of the warnings from other people that movement in the pool can cause connections to leak. I should’ve probably stuck with my original plan of using the Intex tubing for connections at the pool. All of the sudden, this has gotten much more expensive.