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Thread: Main drain questions

  1. Back To Top    #1

    Join Date
    Feb 2010
    San Diego, CA

    Main drain questions

    Hi all

    We've had the pool for 6 months now and I still feel like it's a bit of a mystery but I'm determined to understand this set up ****** it....!

    Is it possible that my main drain isn't working? There is absolutely no suction coming off it. Is this right?

    We have a Star-Rite U-3 skimmer -at least that's what it says on the underside of the lid. But when I look at the manual for this skimmer online it looks different. We have one hole in the bottom that is sucking water in when the pump is running. Then there is one hole on the side of the skimmer, on the wall closest to the pool - is this from the main drain? Then there is another hole on the other side of the unit - don't know where it goes. Does this sound like the Star-Rite U-3?

    When I look at the plumbing it seems that there is no separate line for the main drain and skimmer. The only valve leading into the pump is right in front of it. I presume this is were we shut the water off if there's ever a major leak.

    11,000 gallon chlorine pool:: 48 sq ft DE filter :: IG plaster :: 1 hp Whispaflo pump :: Gas heater and Solar Panel heating

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana

    Re: Main drain questions

    You really can't feel the suction of the drain. The hole in the bottom of the skimmer closest to the wall of the pool goes to the main drain. Water is pulled through this hole as the skimmer is empty. There won't be a lot of pull. This is a Sta-Rite U-3 ... AA300_.jpg
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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