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Thread: Process for Blowing Out Lines???

  1. Back To Top    #1

    Join Date
    Dec 2009
    Virginia Beach, VA

    Question Process for Blowing Out Lines???

    After looking on YouTube for a process for blowing out the lines on my IG pool, here is what I found. Can someone chime in and tell me if this is a sound process or if there's something you'd change? I'll likely close my pool on Saturday and the water level will be below the returns.
    1 - Remove skimmer baskets and eyeballs
    2 - Prep all PVC plugs and gizmos by wrapping the threads in teflon tape at least 3x
    3 - Set multiport to recirculate
    4 - Set valves so that main drain and skimmers are on
    5 - Hook air compressor to the drain port on my pool pump using a threaded fitting and turn on
    6 - One opening will start spitting water, let it blow water out for a minute or so
    7 - Insert plug/gizmo until it is sealed
    8 - Wait for next opening to start spitting water and repeat steps 6 and 7 until all openings are plugged
    9 - Now the main drain will start bubbling
    10 - Let it bubble for a minute or so and then quickly close off the main drain and turn off/disconnect the air compressor
    11 - Set the multiport to Closed

    So is this a good process? I don't have any way to isolate one return from the other and I have 3 returns and 2 skimmers. Typically the lines bubble and spit water in this order:
    1 - Closest skimmer
    2 - Other skimmer
    3 - Closest return
    4 - Next closest return
    5 - Furthest return
    6 - Main drain

    This makes sense and its a process that I've used in the past and is fairly simple, but with this winter looking like its going to be a cold one, just wanted to make sure it's the proper process. Any help/input is greatly appreciated.
    30,000 Gallon Inground, Vinyl Liner
    DE Filter & Pentair IC40 SWG
    Pentair Legend Platinum w/ PB4 Booster

  2. Back To Top    #2

    Join Date
    Dec 2009
    Central Massachusetts

    Re: Process for Blowing Out Lines???

    That's the way I do it. Except I dont lower the water below the returns, I just let them bubble for 30 seconds or so, then screw in the plug.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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