Just thought I would let you all know the system is in and working fine. I have a great turn over in my pond and it smells sweeter and fatheads are happier with more O2. I have it on a timer set to go on in times of typical low O2. With Tax entire system cost $108 Not bad does the job and can't even hear the pump going it so silent. Thanks again to all !!

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1/10 - 1/4 acre pond plus 16 ft deep/ Plus 40 ft by 20 ft by 6 ft deep koi and fathead minnow pond next to it. Upstate NY