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Thread: Clogged Suction Line

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    Join Date
    Oct 2010
    Location
    California
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    Clogged Suction Line

    Geez, this is making me weary.

    I had my pool down for about six weeks. Broke the Hayward core getting it loose, bought a new one ($300 **.)

    Fixed some decorative sub-surface tiles **.

    Cleaned the filter housing carefully; took off the vent valve and cleaned it, etc., Being, as Buggs da Bunny would say, "vewy ca-e-fuw."

    I was probably One Jack Over The Line while dumping in about 7.5 pounds of DE. It seemed to go down nicely w/o suction issues. This is how I have always done it -- LOADED, & fast, as in the Hayward instructions.

    The problem is, the pump suction line is now seriously starved. I can't get more than a few PSI at the filter, and the pump load is wailing up and down (working hard), and the pressure, while faint, is moving with the pump groans.

    I have one of those crazy (and totally awesome) bladders that connects to the end of a hose to use for clearing things like laundry drains; when it is pressurized, it blows up to fill/seal the pipe and delivers a pulsating water train down the tube. [If Home Despot doesn't have them, Ace always does.] I ran it for an hour from the skimmer (the skimmer socket has a PVC pipe riser for a Kreepy regulator) into the pump/filter, and after that, put things back together and ran the pump for a while.

    • It was better for a bit [Kreepy was running], but then went back to the hard working pump story as outlined above.


    Note that Kreepy usually runs at Top Fuel Dragster speed with this pump.

    I put the hose/bladder back into the pump inlet, let it run the other direction from pump to pool for about 45 minutes. Little but not lots of flow -- about 20 or 30 minutes. I have 90 PSI water service, and it should have been a veritable fountain in the skimmer. I had done this previously and noted blooms of DE [about the time Kreepy started to work again], but not this time.

    I put it all back together and let the pump run for an hour or so just to get some chlorine into the pool. Not much different - big time groaning pump and wavering pressure at the filter. I don't like running the system like this as it is obvious that the pump/motor are really straining to get that water into the feed. Kreepy doesn't move.

    I then pulled the Ortega Valves **, put the bladder back into the suction line at the skimmer, and turned on the water. I got a pitiful flow.

    Tried a snake from the Ortega housing back to the skimmer; it hit the 90 degree bend and gave up after the Funky Back started qvetsching.

    I'd call the pool guy, but what's he going to do that I have not?

    While the pool was down I had the cover on the skimmer, and the Kreepy regulator, a leaf trap, and 5' hose connected to the inlet, whose open end was dangling feet above the slosh at the bottom of the nearly empty pool; I cannot imagine anything crawling up and into the system, as the tail of the hose was several feet up from the bottom of the pool, and the fiberglass makes it so slippery that a cat can't climb out after trying to get a drink, even on a side sloping less than vertical (so long Lola [ or, as I called her, Stupid ] -- my married and moved away daughter's 10 year old cat.)

    I am clearly at my wit's end.

    Time for a JACKHAMMER????

    txAbunch

    mac


    ** see previous post
    IGP Anthony / Gunnite / 20 yr. old Glass Topped ~16K w/550 gal spa. | Triton 400 | Hayward Progrid DE6020 | Intelliflo Model 011018 3 HP Var. Speed|Ancient, patched & still willing Kreepy

  2. Back To Top    #2

    Re: Clogged Suction Line

    What is the psi of the filter currently?
    The pool was not running for over a month?

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    Join Date
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    Re: Clogged Suction Line

    About zero to 3 PSI.

    6 weeks.

    tanks.
    IGP Anthony / Gunnite / 20 yr. old Glass Topped ~16K w/550 gal spa. | Triton 400 | Hayward Progrid DE6020 | Intelliflo Model 011018 3 HP Var. Speed|Ancient, patched & still willing Kreepy

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    Mod Squad jblizzle's Avatar
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    May 2010
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    Re: Clogged Suction Line

    Usually best to use the drain cleaner the opposite direction to the normal water flow so you do not make the clog worse. Given you are getting low flow with your hose ... i think there has to be something between the skimmer and the pump.

    I would try running the hose from the pump back toward the skimmer again and try to look to see if anything down the skimmer hole is visible.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    UnderWaterVanya's Avatar
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    Jun 2012
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    Re: Clogged Suction Line

    You could put an above ground temp line terminating below the surface to get chemicals in balance while you figure this out.

    Sent via Tapatalk...
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Clogged Suction Line

    Have you checked to make sure the pump impeller isn't clogged with debris?

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    East_Akl_Neil's Avatar
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    Apr 2012
    Location
    Auckland, New Zealand
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    Re: Clogged Suction Line

    Can you get hold of an drain inspection camera and poke that down the line, would let you see what you are dealing with so you can make a plan of action. If the jack hammer is required, you then know where to target.
    Late 1970's 39000L IG Concrete Pool with Vinyl Liner
    Austral FT55 Sand filter
    Hurlcon E170 Pump Brochure,Manual
    32-40mm Pipe work
    Living in beautiful New Zealand

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    Re: Clogged Suction Line

    Quote Originally Posted by carolina pool
    Have you checked to make sure the pump impeller isn't clogged with debris?
    The Jacuzzi works ok.
    IGP Anthony / Gunnite / 20 yr. old Glass Topped ~16K w/550 gal spa. | Triton 400 | Hayward Progrid DE6020 | Intelliflo Model 011018 3 HP Var. Speed|Ancient, patched & still willing Kreepy

  9. Back To Top    #9

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    Location
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    Re: Clogged Suction Line

    Quote Originally Posted by East_Akl_Neil
    Can you get hold of an drain inspection camera and poke that down the line, would let you see what you are dealing with so you can make a plan of action. If the jack hammer is required, you then know where to target.
    Good idea, if it will make the turns.
    IGP Anthony / Gunnite / 20 yr. old Glass Topped ~16K w/550 gal spa. | Triton 400 | Hayward Progrid DE6020 | Intelliflo Model 011018 3 HP Var. Speed|Ancient, patched & still willing Kreepy

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