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Thread: SLAM but lingering smell in one skimmer and backswimmers

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    Join Date
    Mar 2015

    SLAM but lingering smell in one skimmer and backswimmers

    My pool is crystal clear with no visible issues. I had a "fishy smell" in one skimmer though and saw one backswimmer in the pool, which I killed. So, I slammed the pool... taking FC to 28 for several days. Post my successful SLAM, the FC has remained in the 20s after 2 days and the smell is back in the skimmer. And, the backswimmers are still around but only in my 2 skimmers- can't imagine what they eat since I have no other insects except occasional June bug.
    22k gallon, SWG pool
    Temp: 86
    FC: 23
    CC: 1.0 now
    pH: 7.6
    TA: 60
    CYA: 80
    TH: 250
    Salt: 3000

    But, I just SLAM'd and FC is really high given salt pool so the other readings may not be accurate.

    1) So, do I go back to the SLAM again despite success? Even though problem is skimmer only and pool looks great?
    2) Is there something special to rid skimmer of algae / "smell"?
    3) Any thoughts on these backswimmer (aka True Bugs) that are in my skimmers?

    As always, many thanks for your help.... Warren
    22,400 gallon pool / spa combo with Painted Plaster; 16' x 40' rectangular pool w/ 9' x 9' elevated spa w/ waterfall to pool; Pentair IntelliFlo Variable Speed Pump, Pentair 420 Cartridge Filter, Pentair 4000 BTU heater, Pentair Intellachlor SWG and Clear 03 Ozone System

  2. Back To Top    #2
    Mod Squad kimkats's Avatar
    Join Date
    Jul 2012
    Tallahassee, FL

    Re: SLAM but lingering smell in one skimmer and backswimmers


    Hummmmmmmm interesting problem. Lets do this one step at a time. I am just going to think outloud.....

    -skimmer door-can you see the whole door real good? Is there ANYTHING growing on it? How does the Styrofoam look? Are there any cracks were water can get in and get "stinky"?

    -skimmer-are you SURE the valve is turned so that water can and will flow through it?

    -skimmer basket-have you emptied it? Is there anything sticking to it? Is the skimmer clean?

    -skimmer lines-Have you tried pouring some bleach down it? Not much as you do not want to damage anything.

    That's all I have but maybe one of them will help.

    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit, Become a TFP supporter!

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