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Thread: Brushing After No Drain Acid Wash

  1. Back To Top    #1

    Join Date
    Apr 2015
    Location
    Carroll County/MD
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    69

    Brushing After No Drain Acid Wash

    I searched every thread and couldn't find an answer so hopefully someone can help me.

    I opened the pool this year and I had terrible calcium scale. I just started a no drain acid wash (I am on Day 3) and the pool looks much better. I say looks because it is freezing so I don't know how it feels. I can tell it's better because the bottom no longer looks like sandpaper.

    However, I have a few questions.

    1. Can I use my pool robot (it is not a pressure side) to clean/scrub the bottom?

    2. Can I run my equipment if I can bypass my heater?

    3. After I bring the Alkalinity and PH up do I continue to brush the pool and if so, for how long?

    Thanks All!!
    Gunite 35X15 rectangle w/15X5 tan ledge (giving it an "L" shape) and 6X2 swim out love seat; white marblelite plaster; depth: 3'6-7'6; 24,750 gallons; SWG (Mineral Springs); Pentair C&C 420 w/ VS 3050 pump; 400K Natural Gas heater; coping: 12" PA Full Range Flagstone; 2 Color Change LED Lights; jump rock; 2' exposed backside wall; 700 square feet exposed aggregate decking

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    JoyfulNoise's Avatar
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    May 2015
    Location
    Tucson, AZ
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    11,604

    Re: Brushing After No Drain Acid Wash

    1. Can I use my pool robot (it is not a pressure side) to clean/scrub the bottom?

    The water right now is both very acidic and has no alkalinity in it. You want to avoid putting anything in the water that has metal components in it as they will be subject to greater rates of corrosion.

    2. Can I run my equipment if I can bypass my heater?

    Again, because of the extremely low pH and alkalinity, the heater either must be disconnected or completely bypassed as the water will corrode the metal heat exchanger.

    3. After I bring the Alkalinity and PH up do I continue to brush the pool and if so, for how long?

    You will want to watch your pool carefully for any signs of recurring scale. If the plaster is more than 1 year old, I would suggest you use a 50/50 nylon/steel mixed-bristle brush and brush the pool at least once per day. TFP always recommends brushing your pool as much as you can - like your teeth, your pool should be brushed regularly.

    Hope that helps,

    Matt
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

  3. Back To Top    #3

    Join Date
    Apr 2015
    Location
    Carroll County/MD
    Posts
    69

    Re: Brushing After No Drain Acid Wash

    Thanks Matt. Plaster will be 1 years old in a few weeks.

    I am going to run the no drain acid wash for one more day then bring levels back up, turn on the equipment, let the robot do his thing and brush twice a day for a while.

    thanks!
    Gunite 35X15 rectangle w/15X5 tan ledge (giving it an "L" shape) and 6X2 swim out love seat; white marblelite plaster; depth: 3'6-7'6; 24,750 gallons; SWG (Mineral Springs); Pentair C&C 420 w/ VS 3050 pump; 400K Natural Gas heater; coping: 12" PA Full Range Flagstone; 2 Color Change LED Lights; jump rock; 2' exposed backside wall; 700 square feet exposed aggregate decking

  4. Back To Top    #4
    JoyfulNoise's Avatar
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    May 2015
    Location
    Tucson, AZ
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    11,604

    Re: Brushing After No Drain Acid Wash

    OK, good luck. Post back and let us know how it goes. There's been quite of few of these "I opened my freshly plastered pool fro it's winter's nap and there's scale everywhere" posts. This should be a one-off event and not happen again in the future (I believe it's related to being newly plastered before closing) but do let us know how it all works out for you.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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