I had the same problem (still do). I took the U channel top of a bad PSU and put it over the pump, it helped a good bit but not perfect.
I think you got a pondmaster like me. the normal model 5 pumps are factory shielded.
Also, Copper shields by conducting the energy of the waves to ground.right?
[ 10-28-2001: Message edited by: resago ]
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