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Jan 10th, 2023
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Joined: May 2019
Posts: 77 Likes: 9
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OP
Joined: May 2019
Posts: 77 Likes: 9 |
I wanted to try to clean up the excess nutrients our 1/4 pond since it is now 7 feet low and about half the size and too many fish. We are in an extreme drought! we built 2 pvc rectangles and filled them with various plants. There is no electricity at the pond. I wanted to circulate water thru the plants so was looking at DC options. I have tried different pumps and even a trolling motor. I found some info on the air lift on here and you tube and seemed like what I needed. using a 60 watt air pump it fills a 1 gallon bucket in less than 3 seconds. Some findings on different set-ups. 12VDC sump type pump draws 12.5 amps/150watts. 30 pound thrust troll motor on low setting draws 6.9 amps/83 watts. Air pump 4.9 amps/59watts. All seem to move the same amount of water. The only thing about the DC air pump is it is said not to last very long. I may try an inverter and AC pump if the dc pump fails. I have only run this for a week now but the water looks a little better, just trying to make it until we get rain!
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Joined: May 2014
Posts: 3,832 Likes: 288
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Joined: May 2014
Posts: 3,832 Likes: 288 |
Wastewater treatment plant. They aerate the water so the bacteria breaking down the poo have plenty of oxygen. Due to the introduced air, the water density is low enough that a human body (or most any object that would normally float) will go straight to the bottom. In this case I'll take your word for it. 
Last edited by anthropic; 11/03/21 06:13 PM.
7ac 2015 CNBG RES FHM 2016 TP FLMB 2017 NLMB GSH L 2018 TP & 70 HSB PK 2019 TP RBT 2020 TFS TP 25 HSB 250 F1,L,RBT -206 2021 TFS TP GSH L,-312 2022 GSH TP CR TFS RBT -234, 2023 BG TP TFS NLMB, -160
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