Excessive Pool Pump Current Usage
Definitely check into this. I've found many times that the timer for the pump is at fault. It's supposed to run about 8 hours a day and I've found them running around the clock. The timer motor can also run sporadically, sometimes turning off as it should, other times not doing so.  If the timer is set for multiple on/off sessions, one of the off tabs could be missing. A clogged or dirty filter can also affect operation but not doubling it.