I got another email from the company I bought my system from. Apparently they've never been asked the question about lift rate on any of their systems, but they were able to give me some numbers.

These are their words, not mine...
From what they relayed to me, my system is designed to produce 1.1 cfm at 30 feet. I'm set up at 8 feet, so I should be realizing every bit of what the pump is capable of. That being said....

1.1 cfm x 60 minutes = 66 cfh x 7.48 (cf of water) = 514.8 gallons per hour.

If I calculated my total pond gallons correctly, I've got approximately 187,000 gallons (60L x 60W x 7 avg depth (just a guess on avg depth) x 7.48).

If I'm lifting 515 gph that means I need to run 363 (187,000 � 515) hours to get a single turnover!!??

I think I'm missing something because that just doesn't seem right with what I'm seeing temperature wise. I've reduced to running 6 hours for now (midnight to 6am) due to not having any thermocline and only 3 degrees variance from 20" to 10.5' (91 & 88 respectively) after only 3 days of running 12 hour shifts.

What part of this calculation am I missing? My goal is to run only as long as I need to, to get 1 complete turnover of the pond.

Somebody, please, help a fella out here.

Last edited by Mike Whatley; 08/26/18 09:10 PM.
.10 surface acre pond, 10.5 foot deep. SW LA. The epitome of a mutt pond. BG, LMB, GSF, RES, BH, Warmouth, Longear Sunfish, Gambusia,Mud Minnows, Crappie, and now shiners!!...I subscribe!!