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Thread: Blown compressor clearing main drain

  1. Back To Top    #1

    Join Date
    Jun 2016
    New England

    Blown compressor clearing main drain

    This closing is becoming a nightmare.

    I didn't have much luck with a shop vac so I got a home depot 150 psi 6g compressor. I set it to about 10 psi and left it running. About 5-10m later I smell burning look over and I can see sparking in the engine and can smell the motor burning.

    Didn't see any bubbles so I don't even think it was giving much pressure. It seemed to build up to 150psi and shut off before I started to run it.

    21' x 43' IG 40K Gallon vinyl and concrete pool; liner: 2016; Hayward DE7220 filter; Maytronics M400; TFT-100; Speed-Stir

  2. Back To Top    #2

    TFP Guide
    Catanzaro's Avatar
    Join Date
    Jul 2014
    Howell, New Jersey

    Re: Blown compressor clearing main drain


    I do not know what happened, but can you return it and get a new one?

    Look at post # 10 and you can sense on how compressors react during closing a pool.

    Closing: blosing out lines, water level and then some

    Personally, if you can return the compressor, get your money back, and do not have a budget, look into the Cyclone. The 3' 1.5' flexible hose can be placed in the pump basket and you can easily blow out the main drain and everything else. Total cost is around $350. If you are handy and there is no budget, depending on your pump, a modified cover can be created, like what I did.
    14,700 gallons IG Pool Vinyl Liner - Octal Circulation System
    Hayward Pro-Series 350 LB. Sand Filter Model # S270T - 2" Plumping
    Frog Mineralizer System (EMPTY) - Hayward Super Pump 2 HP Model # k48m2n111
    Pool Company tests water (NO LONGER) TF-100 TEST KIT
    Date of Build is 11-2013

  3. Back To Top    #3
    n240sxguy's Avatar
    Join Date
    May 2014
    Benton, KY

    Re: Blown compressor clearing main drain

    I use a shop vac for mine after I put some anti freeze in the line. I'm also further south, so my comfort level with the main drain is a little bit different than yours. My thought is that the couple gallons of antifreeze mixed with the few gallons of water, trapped by the air bubble my shop vac can push into the line, is plenty for my location. If I lived up north, I would do exactly as you have done, or tried to do. Unless you've got some extra cash for the cyclone, swap the compressor out and retry the drain. It should build up pressure and shut off, or run continuously until you shut it off. You just got a bad one.

    Sent from my iPhone using Tapatalk
    33K gallon IG vinyl. 1.5HP Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100XL

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