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Thread: SCUM LINES - what do you use? How to get rid of permanent Scum line dirt.

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    Argosy's Avatar
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    SCUM LINES - what do you use? How to get rid of permanent Scum line dirt.

    We use a special pool deck and sauna cleaner to remove scum lines. It smells like ginger ale and cleans pretty good, but there are some permanent marks that I can't get off no mater how hard/long I scrub it. Is there some tricks to remove this? What do you use to clean your scum lines and how often do you clean them?
    Kyle. I manage a residential complex and taking care of the swimming pool is one of my duties. It is an indoor, 36 000 gallons (140 000 liters), Marbelite, heated pool, with sand filter, and Jacuzzi 1.5 HP pump. Normally I aim to keep the following chemical composure in the pool: FC = 1.5 - 2.5; PH = 7.4 - 7.6; TA = 80 - 90; CH = 200 - 300; Saturation Index = 0.0 - +0.2 Testing Kit: Taylor K-2006

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    Mod Squad woodyp's Avatar
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    Re: SCUM LINES - what do you use? How to get rid of permanent Scum line dirt.

    Does this pool have a vinyl liner?
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
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    Argosy's Avatar
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    Re: SCUM LINES - what do you use? How to get rid of permanent Scum line dirt.

    Quote Originally Posted by woodyp View Post
    Does this pool have a vinyl liner?
    Plaster with mosaic tiles on water line. Built in 69.
    Kyle. I manage a residential complex and taking care of the swimming pool is one of my duties. It is an indoor, 36 000 gallons (140 000 liters), Marbelite, heated pool, with sand filter, and Jacuzzi 1.5 HP pump. Normally I aim to keep the following chemical composure in the pool: FC = 1.5 - 2.5; PH = 7.4 - 7.6; TA = 80 - 90; CH = 200 - 300; Saturation Index = 0.0 - +0.2 Testing Kit: Taylor K-2006

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    Mod Squad YippeeSkippy's Avatar
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    Re: SCUM LINES - what do you use? How to get rid of permanent Scum line dirt.

    What about one of those magic sponge things? You kmow, like a very smooth white pumice "sponge"
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    Re: SCUM LINES - what do you use? How to get rid of permanent Scum line dirt.

    Quote Originally Posted by Argosy View Post
    Plaster with mosaic tiles on water line. Built in 69.
    Still with the original tile???

    It could be a calcium stearate or calcium carbonate scale. You could try dilute muriatic acid in a spray bottle as long as your grout is not a dark color.


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    Argosy's Avatar
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    Re: SCUM LINES - what do you use? How to get rid of permanent Scum line dirt.

    Quote Originally Posted by YippeeSkippy View Post
    What about one of those magic sponge things? You kmow, like a very smooth white pumice "sponge"
    Thats a good idea, I will try this first!
    Kyle. I manage a residential complex and taking care of the swimming pool is one of my duties. It is an indoor, 36 000 gallons (140 000 liters), Marbelite, heated pool, with sand filter, and Jacuzzi 1.5 HP pump. Normally I aim to keep the following chemical composure in the pool: FC = 1.5 - 2.5; PH = 7.4 - 7.6; TA = 80 - 90; CH = 200 - 300; Saturation Index = 0.0 - +0.2 Testing Kit: Taylor K-2006

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    Argosy's Avatar
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    Re: SCUM LINES - what do you use? How to get rid of permanent Scum line dirt.

    Quote Originally Posted by JoyfulNoise View Post
    Still with the original tile???

    It could be a calcium stearate or calcium carbonate scale. You could try dilute muriatic acid in a spray bottle as long as your grout is not a dark color.


    Sent from my iPhone using Tapatalk

    Yes, still original tiles and I should say it preserved very nicely, except few spots on the deck where tiles where replaced due to bubbling up. I am suggesting to the owner to do a hardcore renovation on the pool and deck this winter, but it is up to the operational budget. The owner realizes that he will have to do it sooner or later anyways.

    I will try with Muriatic acid if the "magic eraser" fails.
    Kyle. I manage a residential complex and taking care of the swimming pool is one of my duties. It is an indoor, 36 000 gallons (140 000 liters), Marbelite, heated pool, with sand filter, and Jacuzzi 1.5 HP pump. Normally I aim to keep the following chemical composure in the pool: FC = 1.5 - 2.5; PH = 7.4 - 7.6; TA = 80 - 90; CH = 200 - 300; Saturation Index = 0.0 - +0.2 Testing Kit: Taylor K-2006

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