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Thread: Suction leak?

  1. Back To Top    #1

    Join Date
    Mar 2010
    Location
    South OC, California
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    67

    Suction leak?

    Ok, so my pool was remodeled two weeks ago. Everything was running fine, until this past weekend. The valve was moved for the returns to the old spa jets and I ended up having water leaking at the SWG as the pressure was higher with the spa jets. About 25psi.

    Fixed the SWG, tighten it up. I also lubed the SWG o-rings and the pump lid o-ring.

    Since then, I seem to be pulling air into the pump and the filter is filling with air as well. All new equipment was installed (pump, filter, SWG) and connected to existing copper pipe and valves. Also a new skimmer was installed.

    When I turned off the pump last night, after trying to trouble shoot, I noticed the system was burping air from the pump inlet.

    Any ideas on what it might be?

    I have Ortega 3 port valves in the copper pipe, they are old. Might need new seals, but not sure they would pass enough air? They never show signs of water leaking out at any point.

    Will call the pool builder to take a look as well.
    32' x 15', 25k gallon gunite IG pool, California Quartz plaster in Tahoe color
    Pentair equip (Intelliflow VS+AU pump, DE filter, IC40 SWG)
    Spa wall removed to make "seating" area

  2. Back To Top    #2

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    Mar 2007
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    Coastalish 'down easter'
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    Re: Suction leak?

    Can you give us a couple pics?
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

  3. Back To Top    #3

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    Mar 2010
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    South OC, California
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    Re: Suction leak?

    I only have a pic of the old equipment setup. A new one is on the camera. Will see what I can do, but currently working long 11 hour days and its always dark when I am home.

    Talk to the pool builder, they will most likely come look at it, might put in a new suction line from the skimmer, its a short distance, like 3 to 5 feet away, but is under the concrete deck.
    32' x 15', 25k gallon gunite IG pool, California Quartz plaster in Tahoe color
    Pentair equip (Intelliflow VS+AU pump, DE filter, IC40 SWG)
    Spa wall removed to make "seating" area

  4. Back To Top    #4

    Join Date
    Mar 2010
    Location
    South OC, California
    Posts
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    Re: Suction leak?

    OLD EQUIPMENT
    Attached Images Attached Images
    32' x 15', 25k gallon gunite IG pool, California Quartz plaster in Tahoe color
    Pentair equip (Intelliflow VS+AU pump, DE filter, IC40 SWG)
    Spa wall removed to make "seating" area

  5. Back To Top    #5

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    Apr 2007
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    Sebring, Florida
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    Re: Suction leak?

    Well, we can narrow it down a little (and you may already know this) but you clearly have a suction side leak if your are collecting air into the system.

    So, somewhere between the skimmer and the impeller, air is getting into the system. You can usually be pretty systematic and figure out where it is by process of elimination. The O-ring on the pump strainer basket lid is the most common place for a suction leak to occur.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  6. Back To Top    #6

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    Mar 2010
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    Re: Suction leak?

    I did lube the pump strainer lid. Didn't see much change.

    I took apart the 3 way valve since its so old and sat dry for who knows how long. I think it might be coming from there, as when I put it back together and started the pump is actually filled more than normal, but didn't fix anything totally. So I will get new o-rings for it and see what that does.

    If that's not it, then only other thing would be the suction line.
    32' x 15', 25k gallon gunite IG pool, California Quartz plaster in Tahoe color
    Pentair equip (Intelliflow VS+AU pump, DE filter, IC40 SWG)
    Spa wall removed to make "seating" area

  7. Back To Top    #7

    Join Date
    Mar 2010
    Location
    South OC, California
    Posts
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    Re: Suction leak?

    Sucess!!!
    It was the valve, changed the seals and o-rings and its running now, no bubbles out the returns and pump strainer area only has a few bubbles. =)
    Just didn't replace the lid o-ring on it since the wife bought lids instead of lid o-rings! haha...will exchange them on Sat.

    Feels good to solve a problem!
    32' x 15', 25k gallon gunite IG pool, California Quartz plaster in Tahoe color
    Pentair equip (Intelliflow VS+AU pump, DE filter, IC40 SWG)
    Spa wall removed to make "seating" area

  8. Back To Top    #8

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    Re: Suction leak?

    Feels good to solve a problem!
    I hear ya'! Nice work! Suction leaks are really troublesome because they just aren't very apparent.

    Please serve yourself an extra adult beverage for good detective work and a VERY good outcome.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  9. Back To Top    #9

    Join Date
    Mar 2010
    Location
    South OC, California
    Posts
    67

    Re: Suction leak?

    Thanks! Yeah, I enjoyed the Crown Royal last night.
    Just glad it doesn't need a new suction line, but not like I would be unhappy to get rid of some of the 1.5" copper pipe. But I can wait to replump the pool for when I am ready to put in a new deck.
    32' x 15', 25k gallon gunite IG pool, California Quartz plaster in Tahoe color
    Pentair equip (Intelliflow VS+AU pump, DE filter, IC40 SWG)
    Spa wall removed to make "seating" area

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