Quote:
Originally posted by V12|V12
You know, I thought that I'd NEVER recommend this pump, but this VIA 1300 (370GPH) 6' ,max, is a STEAMSHIP of power, but with that power, you'll pay the price of 60hz NOISE hmm'ing away from it. I don't like that it has a plastice shaft, but it's a solid pump, noisey, powerful and produces some heat, but for $22 can't beat it for the GPH... I'd also recommend a RIO 1100 or 1400 series, as they are cheap in price and pump quiet nicely... I'm TOTALLY against paying Ehiem prices for an oversized/priced pump that delivers inferior numbers for the money... but do what ya pockets can afford... oh yeah, them Maxi-jets are nice too for the $$$... If you want, I'll sell you my Via 1300... PM me and we'll work a nice price for ya, if you like...? 
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Back to the ole' Via, heh?
That 60 Hz noise could be fixed... maybe.
It usually comes from poor coil wrapping. If you crack open the pump, you'll see the motor coils. The 60 Hz buzz comes from the coil wires vibrating, under its own induced EM field.
In order to isolate the noise, you want to dip those coils in laquer, or epoxy, or even wax, if the temps don't get too high. Whatever the solution, it must be able to penetrate deep inside of the coil, so it must be very liquid.
As usual, if you try this, you're on your own.
