post #21 of 21
Try running the unit out in the open if you can...hold it in your hand. See if that reduces the noise. If so...look to dampening the plastic-to-metal or metal-to-metal connections. Maybe with rubber grommets or foam. I have an EK 12V pump and I mounted it as described in the manual w/foam pads and all but it still rattled. I took off the plate and now just have the pump sitting on a chamois towel and the sound is almost nil (slight hum). In this case w/pump attached to the reservoir you might be out of least try and dampen the attachment points of the reservoir.
Edited by FuzzDad - 3/6/11 at 6:46pm