quote="oldsarge, post: 203965, member: 6309"]
Follwing my posting yesterday I did some research. I think the system holds about 1,800 to 2,000 gallons so I probably need a 2,000+ GPM pump with a total head of 4+ feet to move the entire volume every hour when it's runnning which in our climate might be 7/25 all year round.]
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Oldsarge,
You may have made a typo in your post there. I definitely don't think you want a 2,000 GPM pump! WOW! Let's go surfing on your pond because there is going to be one HUGE sunami wave!
I think you meant a 2,000 gph pump.
Remember that your filter system has to be capable of handling that flow rate. If you push too much water through it and the bacteria cannot keep up, you are just wasting energy at the pump. Sure, the exchange of ammonia and nitrites will still be accomplished, but you may be spending more money on electricity to run the pump. Personally, I don't believe in the recommended turnover rate of one hour for the total pond volume. Four hours would be sufficient for most ponds if the filter is highly efficient and the bio-load is normal.
I would say that your bio-load is normal. You are not overstocked.
Gordy