I have a leak in my pump, which I bought the kit http://www.poolcenter.com/gokit3.jpg to hopefully replace.....well that's another issue, but thought you should know in case it's related to the problem below.
Every night I have to prime the pump, and I'm noticing strange behavior which I cannot explain. I close all the returns except for my closest skimmer, fill up the pump basket and turn on the pump. All is working fine, and the pump reaches about 90-95% capacity and then it just loses prime. It doesn't start to lose it, it just loses it.
If I do the same process with the main drain, it works fine (it just takes me longer). Once it gets primed, I can then open my skimmers without any problems. Can somebody explain why I lose prime with the closest skimmer. BTW, once the pump is working fine, the closest skimmer's suction is good.