The craziest thing happened yesterday. I called the pool company and they said someone would call me back today. Then last night I went out to add some bleach and I noticed no water was coming out of the returns. The pump was running but didn't seem quite right. I turned it on and off and no difference. Finally, I looked at the pressur guage and it was up about 10 psi!!! So I backwashed and afterwards it seemed to be all working fine. I'm at a loss. The pressure never went up for days and days and then all of a sudden it goes up by 10psi in a matter of hours? Is that normal? I'm so frustrated with this pool I'm ready to fill the darn thing in!