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Joined: Jun 2005
Posts: 68
Lunker
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OP
Lunker
Joined: Jun 2005
Posts: 68 |
I have a 10 acre pond that loses about a foot + of water in the summer due to irrigation use and evaporation. I think I'm going to go with a solar pump and a system capable of pumping an inch and a half line to stabilize the pond level and cut down on stagnation, algae blooms, etc in the summer months. We are also looking at expanding the pond by several acres and picking up another watershed in the process. I'm looking for any advice on the well from people who have experience- any tips, systems, product recommendations, etc would be appreciated. . The aquifer is pretty shallow around here (less than 100 feet). Thanks for your comments in advance.
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Joined: Apr 2006
Posts: 3,261
Ambassador Lunker
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Ambassador Lunker
Joined: Apr 2006
Posts: 3,261 |
KC, aspects of what a well needs to produce to have any affect on a pond have been recently disussed somewhere, i would search the forum a bit and see what comes up recently, try a search for "gpm" in the last couple months..
solar systems only produce significantly at shallow depths so its good yer aquifer is shallow. you can look at sierrasolar.com to get an idea of what current systems do. the grundfos systems appear the nicest, but production radically falls off below 100 ft. remember that 1 acre of water that is 1 inch deep is ~25,000 gallons which translates to a ~17 gpm well running 24/7 (if you want to fill 1 acre by 1 inch per day and assuming no loss from seepage and/or evaporation).
1 acre of water 1 foot deep is over 300,000 gallons which translates to a ~200 gpm well running 24/7 (to fill 1 acre by 1 foot per day). i doubt you can find a solar system that will do more than 40-50 gpm at 100 ft depth for any reasonable cost.
good luck, let us know what you find.
and p.s. i recall that you have an incredibly beautiful 10 acre puddle.....so multiply those numbers above by 10 and thats what you'll need to visibly increase yer water levels.
GSF are people too!  
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Joined: Jun 2005
Posts: 68
Lunker
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OP
Lunker
Joined: Jun 2005
Posts: 68 |
KC, aspects of what a well needs to produce to have any affect on a pond have been recently disussed somewhere, i would search the forum a bit and see what comes up recently, try a search for "gpm" in the last couple months..
solar systems only produce significantly at shallow depths so its good yer aquifer is shallow. you can look at sierrasolar.com to get an idea of what current systems do. the grundfos systems appear the nicest, but production radically falls off below 100 ft. remember that 1 acre of water that is 1 inch deep is ~25,000 gallons which translates to a ~17 gpm well running 24/7 (if you want to fill 1 acre by 1 inch per day and assuming no loss from seepage and/or evaporation).
1 acre of water 1 foot deep is over 300,000 gallons which translates to a ~200 gpm well running 24/7 (to fill 1 acre by 1 foot per day). i doubt you can find a solar system that will do more than 40-50 gpm at 100 ft depth for any reasonable cost.
good luck, let us know what you find.
and p.s. i recall that you have an incredibly beautiful 10 acre puddle.....so multiply those numbers above by 10 and thats what you'll need to visibly increase yer water levels. I follow what you're saying but the pond won't need to be recharged at the rate of a foot a day. Unless I'm missing something, which I may be, several thousand gallons a day should be able to offset a foot loss over the course of give or take 4 months. It would be passive recharge in that there would be flow to the lake every day regardless of the need. Our use isn't so intense that we would use several thousand gallons a day but that doesn't factor in evaporation or seepage. Thanks for your thoughts and I'd love to hear some more. KC
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Joined: Feb 2006
Posts: 1,948 Likes: 9
Moderator Lunker
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Moderator Lunker
Joined: Feb 2006
Posts: 1,948 Likes: 9 |
Assuming you lose 1 foot of over 4 months, thats .1 inches per day. To replace that each day over 10 acres would take 1/12 acre foot of water or 27,166 gallons of water. If you can pump 12 hours a day that would equal 37.73 gallons a minute to stay even for the day.
That sounds like it could work. During the summer, depending on you location, your evaporation will be higher than .1 inches so you will be behind during the hottest times of the year.
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Joined: Aug 2002
Posts: 20,043 Likes: 1
Hall of Fame  Lunker
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Hall of Fame Lunker
Joined: Aug 2002
Posts: 20,043 Likes: 1 |
KC,
How much rainfall do you get over the summer? If you get some rainful it should negate evaporation to some extent.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
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