No need to apologize. I have two Iwaki 70's on either side of the sump that do not make near the noise the mag 36 made. I noticed my temp kept rising and thought a heater was malfunctioning so I unplugged all 4 of them and the next day it had risen another 2 degrees so I unplugged the mag and the temp fell back to normal. This pump must have problems if you have no heat problems with yours in 120 gal
of water and mine was raising 600 gal
1-2 degrees a day. I decided to go external after this mag incident. That is why my post read the way it did.