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Thread: Well pump for Lake water supply

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  1. #1
    DIY Junior Member timberjack's Avatar
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    Default Well pump for Lake water supply

    I am building a cottage in Ct. Water will be pumped from the lake for shower and sink. No water necessary for toilet.
    1. Can a submersible well pump be used in a horizontal position or must it be vertical to function correctly?
    2. Does a submersible well pump require a case or sleeve over it
    to operate correctly?
    I would like to set the pump 12" above the lake bottom.
    The length of 1 1/4 pipe from pump to bathroom is 150'. The rise is approx.25'. Also a cartridge filtration system will be installed. Should the pump size be increased to compensate for the filter?
    Thanks in advance for your assistance.

  2. #2
    Previous member
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    Yes it can be used horizontally. A sleeve is not necessary but a lake strainer will be. I use my lake strainers as a housing for the pump to keep minnows and leaves etc from plugging the screen on the pump. If your using a cartridge filter, put it after the tank and switch, never between the pump and the switch.

    My 1/2hp Submersible Pumps and the lake strainer:


    bob...
    Last edited by Terry; 07-10-2011 at 06:28 PM.

  3. #3

    Default well pump for lake water supply

    Speedbump, thank you for the help and recommendations.
    One more question. Is a cartridge filter the best way to filter lake water for shower and sink use.
    Thanks again

  4. #4
    Electrician Chris75's Avatar
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    Litchfield, CT
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    Which lake? If you dont mind me asking. Also, you are digging a trench for the power and water line correct?

  5. #5
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    In my opinion, a cartridge filter isn't good for anything. Unless it's large enough to do the job correctly. There are real cartridge filters that can be purchased and used, but you won't find them at any big box stores.

    bob...

  6. #6

    Default lake water supply to cottage

    Speedbump & Chris75 THANK YOU
    Small Lake is located east of Durham.
    The pump was originally going outside the building. The design changed after the water line was installed. Its more practical to use a submersible well pump to avoid outdoor pump freezing.
    To answer your question, no electric was installed in the waterline trench.
    This creates a few questions.
    1. What type of wire for under water application?
    2. AWG size and conduit for water environment?
    3. Grounding requirements
    4. I assume GFI is required.
    5. Required depth of conduit in soil?

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