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Thread: Black 'ring' stain @water level in Skimmer

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    thecanuck22's Avatar
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    Black 'ring' stain @water level in Skimmer

    I met a couple tonight at a social whom have a black ring in there skimmer at about water level. I am starting to get a faint black ring also. What could cause this? better yet what could cure this?
    Blessed is the man who can laugh at himself for he will never cease to be amused.
    To teach is to learn twice.
    My Pool. 20 x 40 120,000 litres (about 30k gal) sand filter, a pump of some type...lol & a bunch of neighbourhood kids.

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    Re: Black 'ring' stain @water level in Skimmer

    I think you are talking about a scum line, oils and other sticky stuff get stuck to the plastic at the water level and turn black from dirt and debris. You'll probably end up with a black ring around the whole pool but I think it starts in the skimmer since all the oils and etc are getting sucked into that area. The scum bugs work well to prevent this, you can use a magic eraser on the plastic in the skimmer.
    -Kevin
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    22,000 gal / 16' x 32' / Vinyl / Hayward s244t /Pentair SuperFlo 1 hp

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    Mod Squad Bama Rambler's Avatar
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    Re: Black 'ring' stain @water level in Skimmer

    Get some scum balls and throw them in the pool. They help the black ring a lot. They eventually wind up in the skimmer which is where you want them anyway.

    I use Magic Eraser to clean the ring in the skimmer, around the step handrails, even the entire pool at the water line. You'll be amazed how easy it cleans it.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: Black 'ring' stain @water level in Skimmer

    I'll second that motion! I too have the black ring in the skimmer (which I know is from all the suntan lotion getting into the pool), and even started to realize the tile area above the water line was getting hazy and covered over with "gunk". Based on both recommendations from this forum (THANKS!), I threw a scum ball into each skimmer and one into the pool itself (this one didn't do much help in the pool and wound up in the skimmer - that's fine), and am amazed at just how much that black line has now transferred to the scum balls; and then also used a Magic Eraser on the tiles and restored their shine instantly!! I simply swim around the pool with the Magic Eraser, wiping down the tiles and in about 10 minutes it's all gone!!

    I understand there are various "enzyme" products on the market to help breakdown some of these oils and residue. I'd be interested to hear others opinions on any of these products. I haven't looked into them myself yet, so wasn't even sure if there is a particular one worth any while.
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    JasonLion's Avatar
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    Re: Black 'ring' stain @water level in Skimmer

    If you have lots of suntan lotion, tanning oil, bug spray getting into the pool the first thing to try is a scum bug/scum ball. These are foam things that you put in the skimmer that soak up oils. If there is too much oil for those to handle, the next thing to try is an enzyme product. They help chlorine break down the oils much more quickly so you never notice them. There are many many brands. ProTeam Power Enzyme is very reasonably priced, while Pool Perfect is usually easy to find at a store though more expensive.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Black 'ring' stain @water level in Skimmer

    awesome thanks guys!!
    Blessed is the man who can laugh at himself for he will never cease to be amused.
    To teach is to learn twice.
    My Pool. 20 x 40 120,000 litres (about 30k gal) sand filter, a pump of some type...lol & a bunch of neighbourhood kids.

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    Heckpools's Avatar
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    Re: Black 'ring' stain @water level in Skimmer

    Im a little late but nothing works better then removing the sticky black ring then this!

    POWER BLUE

    http://www.powerblue.us

    The best stuff ive ever found
    [center:3gj9kdnn]Matt Heck
    "HECK OF A POOL SERVICE LLC"
    Serving Ocean co. NJ
    COMPANY INFO BELOW
    http://maps.google.com/maps/place?hl=en ... 2995187987[/center:3gj9kdnn]

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