How many skimmers should a 1500 sq ft pool have?

Answer 1

Some of this depends on how much water flow you need, like how much water you need to get out of the pool to supply a water feature. That said, just to do the job of a skimmer (get surface waste off the water) one placed in the proper location for you location should do the job. A professional should come to your yard to see what other factors may be there that may cause you to want a second though.

Answer 2

It depends on the size of the pool. A normal size pool should have at least 2 skimmers