Hi! I have a question about holes in my pool. It's about 11000 gallons or so, more info in my sig. As far as I can determine, I have 3 suction ports in my pool. One in the spa area, a rectangular area about 3x5 inches or so. One is the skimmer, and there is one more in the wall of the pool, a couple of inches down from waterline. The last one is a plastic fitting, threaded on the inside, embedded into the wall.
I have 6 returns into the main pool area, and 4 into the spa area.
There are two grate covered holes in the bottom of the pool; one in the spa area, and one in the main pool area. These have no suction. I can feel suction in each of the 3 suction ports I mentioned above, but not in the floor holes.
Is this normal? Are the floor hole just gravity drains?
Please pardon my choice of words, I'm really new at this, and I'm not quite sure of all the terminology!