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Thread: RV Trailer question

  1. #1
    Join Date
    Jan 2001
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    Default RV Trailer question

    A friend of mine has recently acquired a 2023 Shasta (Forest River) 21CK. He wants to drain the water system for the winter but no one seems to be able to tell him where the water pump is. (Hard to fathom, but that's what he's telling me...) I'm betting someone here knows the answer...

    TIA
    John
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

  2. #2
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    Default

    Unfortunately, that is not unusual. Every single RV floorplan has the water pump located in a different spot. Someone would have to be very familiar with that particular model in order to know where the water pump is. For example, we have about 150 different floorplans on our dealership's lot; that's mean I would have to remember where the water pump is located for 150 different models.

    What I usually tell folks is to turn the water pump on and allow it run (either with pumping water or just air) and then listen for it. It can be located underneath a kitchen cabinet, inside a storage compartment behind a panel, under the bed, etc. Sometimes you'll have to remove some sort of access panel to get to it.

    Casey
    1995 K1500 Tahoe 2 door, 6.5LTD, 4L80E, NP241, 3.42's, 285/75R16 BFG K02's; 1997 506 block; Kennedy OPS harness, gauges, Quick Heat plugs, and TD-Max chip; Dtech FSD on FSD Cooler; vacuum pump deleted, HX35 turbo, Turbo Master, 3.5" Kennedy exhaust, F code intake; dual t/stats, HO water pump, Champion radiator; Racor fuel filter

  3. #3
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    Thanks. Now it's a little more easy for me to understand. He tried that and told me it sounded like it was behind the wall in the shower. Does that make any sense?
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

  4. #4
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    Default

    Quote Originally Posted by JohnC View Post
    Thanks. Now it's a little more easy for me to understand. He tried that and told me it sounded like it was behind the wall in the shower. Does that make any sense?
    No, it wouldn't be there. He may be hearing the PEX water lines vibrating and hitting the wall from the pulsing of the water pump. He'll have to keep looking.

    Another tip: it should be located somewhat close to the fresh water tank. Look for where the fresh water tank (or tank fill at least) is located, and then branch out from there.

    Casey
    1995 K1500 Tahoe 2 door, 6.5LTD, 4L80E, NP241, 3.42's, 285/75R16 BFG K02's; 1997 506 block; Kennedy OPS harness, gauges, Quick Heat plugs, and TD-Max chip; Dtech FSD on FSD Cooler; vacuum pump deleted, HX35 turbo, Turbo Master, 3.5" Kennedy exhaust, F code intake; dual t/stats, HO water pump, Champion radiator; Racor fuel filter

  5. #5
    Join Date
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    New Hampshire - Live Free or Die
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    Thanks!
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

  6. #6
    Join Date
    Mar 2015
    Location
    Montana, the warm state.
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    I would like to make a little comment, it is not good to run pumps dry, it will shorten the life of the impeller.
    Part of the fleet.
    85 Sub. 6.2 trans out.
    82 3/4 CC 6.5 N/A
    83 GMC 1 Ton 6.2 Est Mil. 1 MIL +
    96 Dodge 3500 5.9 4X4 Sorry, went to the dark side.
    19 Escalade Buick

  7. #7
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    CA
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    Quote Originally Posted by FKummert View Post
    I would like to make a little comment, it is not good to run pumps dry, it will shorten the life of the impeller.
    RV fresh water pumps are cam-driven diaphragm type. No impeller, and can be run dry indefinitely. They have no moving parts within water/liquid contact.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  8. #8
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    Quote Originally Posted by DmaxMaverick View Post
    RV fresh water pumps are cam-driven diaphragm type. No impeller, and can be run dry indefinitely. They have no moving parts within water/liquid contact.
    That is correct!

    https://www.pentair.com/en-us/produc...ntair_products

    "Can run dry without damage."

    Casey
    1995 K1500 Tahoe 2 door, 6.5LTD, 4L80E, NP241, 3.42's, 285/75R16 BFG K02's; 1997 506 block; Kennedy OPS harness, gauges, Quick Heat plugs, and TD-Max chip; Dtech FSD on FSD Cooler; vacuum pump deleted, HX35 turbo, Turbo Master, 3.5" Kennedy exhaust, F code intake; dual t/stats, HO water pump, Champion radiator; Racor fuel filter

  9. #9
    Join Date
    Mar 2015
    Location
    Montana, the warm state.
    Posts
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    Default

    I stand corrected, but my old camper has a pump with impeller.
    Part of the fleet.
    85 Sub. 6.2 trans out.
    82 3/4 CC 6.5 N/A
    83 GMC 1 Ton 6.2 Est Mil. 1 MIL +
    96 Dodge 3500 5.9 4X4 Sorry, went to the dark side.
    19 Escalade Buick

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