Well it is 2:10 am, and I am laying here and can't sleep, so of course I am thinking about the pool. I was just wondering if it is common for 2 speed pumps to make the droning whiirrrwhiiirrrwhiirrrr sound like mine does when set to low (the sound repeats 1 or 2 times per second, not loud, just rarrr rarrr rarrr sort of noise) or if it is just some off harmonic of my plumbing setup?
Ike
Ike