ack, 3/4 inch OD?? kinda fat for my system...i wonder if they have em in different sizes?
i know
petsmart sells the Danner pumps, but i dont know about the housings. you might try checkcing in one of their stores...
to ECU:
ive got a 350GPH danner, it gets warm but not hot (i had mine running for several hours). when purged of air, it sounds...like a pump (low hum). you have to seal the housing to prevent it from leaking tho. ive also hear of them 'rattling' (Ehiem pumps too), but mine is fine so far. i need to test it out more
