do you guys use utily pumps ? to pump the water back to the main tank. the pump im useing is http://www.burcam.com/files/Web/Infos/Anglais/300506BPS.pdf any ideas on how to make utility pumps a little less noisy. or recomend a less noisy pump looking at the 100 pgh range, head of 5 ft tops. would prefer to stick to utilty pump as i think they can pump more water ph then a reg pump just gotta cut some of this noise. if it helps this is a subersable pump.