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  1. How small can my service neutral be when most of the load is 240v?

    Non-residential 120/240 single phase service. 320amp meter to (2) 200 amp panels. The distance from the meter on a pole to service panels are 50ft. I'm running 3/0 copper for the phase...
  2. I don't remember the exact specifics, but the...

    I don't remember the exact specifics, but the price was the same as the local deep wells which run from 450' to 750', with 600' about average. I understand the large capital costs, and the need to...
  3. Thanks for the input-- The biggest reason I...

    Thanks for the input--

    The biggest reason I want to use the cement-cased well is it's big enough for me to install a 1/3hp submersible pump, so I can significantly reduce the cost of running my...
  4. can you use syphon effect to connect two wells?

    19884

    I have a 25' shallow 30"id cement-cased dug well that produces 4-5gpm with a soon-to-be installed small submersible pump. I'd like an additional 3-4 gpm without any additional pump.

    So...
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    yeah, it's just a schrader valve.

    yeah, it's just a schrader valve.
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    There's just a snifter; I redo the air in the...

    There's just a snifter; I redo the air in the tank maybe once a year.

    I don't know if it matters, but the pipe is 1 1/4 galvanized to the tank, and then 1 1/2 pvc to the house.
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    Yeah, I've been meaning to get a csv; I...

    Yeah, I've been meaning to get a csv; I currently have a 120 gallon galvanized tank. What size csv would be best and would I install it just past the tank?
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    I'm thinking of something like the Grundfos...

    I'm thinking of something like the Grundfos 16s20-18 so I could have some extra for irrigation; I already use the outflow from the geothermal for watering flowerbeds, etc, but would like to be able...
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    Help me pick a pump please

    I'm getting the pump pulled and replaced tomorrow and trying to decide on size of pump.

    Questions are two fold--

    1) which pump to use in the current usage situation and
    2) which pump If i...
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    Thanks, A few additional questions, 1) So...

    Thanks,

    A few additional questions,

    1) So if the pump needs to be lowered in the well, and given the age of the pump, should I have the pump replaced anyways?
    2) How far should I lower the...
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    Pump/well output halved

    A few weeks ago, our well/pump started producing less than half the water it normally does. Went from 10-12 gpm to around 4 gpm.

    650 ft 4" well; pump at about 220ft(just a guess from a driller);...
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    Increasing Shallow Dug Well Yield

    I'd like to increase the yield of my 25' shallow 30"id cement-cased dug well. (This well is quickly becoming a hobby and academic obsession). It's currently at 5gpm and I'd love to get an...
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    negative pressure in water-source heat pump

    Does anyone know the performance impact of negative pressure in a water-source heat pump? The setup I'm thinking of would cause the pressure through the WSHP to be about -5 to -10 psi.

    Thanks
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    Installing Submersible in Shallow Well

    Short: How do I install a submersible pump in a large-diameter shallow well without losing several feet of storage in the well?


    I've got a 25ft 30"id cement-cased dug well that I'm going to use...
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    water pipe repair with sch 40 conduit

    I had to do a semi-emergency repair of a broken sch40 pvc water line. The only thing I had available was some of the grey sch 40 electrical conduit; so I used it.

    It's about a 6 foot section of...
  16. Thread: Low head pump

    by tkeoki
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    686

    Thanks for the reply. The 40' head includes...

    Thanks for the reply.

    The 40' head includes the dynamic pumping level. Here's my calculations on costs with a 50% run time (I think my average actual run time is lower; I haven't been able to...
  17. Thread: Low head pump

    by tkeoki
    Replies
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    686

    Low head pump

    What's the most efficient pump with the following requirements?

    Pumping from a 30" cement cased well--25' total depth
    Dynamic level of ~18 ft.
    10gpm @ a total of 40' head.
    About 40-50% run...
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    I think the sanitary seal is in the picture; ...

    I think the sanitary seal is in the picture; just hard to see, I'll get a better picture this morning.

    Well, I'm still going to get confirmation, but I think I might have some sulfur-reducing...
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    Where would I put chlorine?

    I need to disinfect our well. I've attached a picture of the top of the well housing and am wondering where I would enter the disinfectant? If you need addt'l pictures from a different angle, let...
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    K--found a submersible pump I can rent. I have...

    K--found a submersible pump I can rent. I have the piping pretty much ready and now just need some instructions on how to properly do the well yield test.

    here's my preliminary plan--please let...
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    Hehe--yeah, galvanized. :o If the pumps at...

    Hehe--yeah, galvanized. :o

    If the pumps at 250ft, is it at all practical to look in to pulling it as a diy project or would it be necessary to use a well company?
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    Testing old bored well

    Any suggestions on how to best test the output of an old 24" cement-cased bored well? The well is 29ft deep. Well companies in my area say these wells often produce at least 10gpm.

    The only...
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    Determing well and pump info

    Moved to E. Texas and purchased an 80 yr old house 3 yrs ago and been enjoying restoring it diy style. I knew nothing about wells when I moved in, but have learned a lot since -- although the more I...
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