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Thread: Newly plastered pool does not look right

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    Newly plastered pool does not look right

    My frirst pool. This pool was plastered mid Jan 2013 . It is now March 22 and plaster doesn't look right. My Pool builder says its normal , but something doesn't sound right.

    Pool plaster supposed to be medium gray, currently it looks very spotty and streaky.
    Any input on if this is normal , sign of water chemistry issues or bad plaster job.
    Attached Images Attached Images
    Location: Southern California
    20k gallon +7ft spa, Cartridge, IG , Plaster, Salt system Hayward, Hayward EcoStart Pump, Hayward filter & heater.

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    Re: Newly plastered pool does not look right

    No, that doesn't look right to me.. What kind of finish is it... Diamond Brite, Quartz, Pebble Tech? I'd get another "official" opinion.
    Helen
    Dallas Area, 16,000 gal IG, Easytouch 8 computer, Intelliflo 3HP Variable Speed pool pump, Pentair Smart Pump 4x160, Pentair 3/4 HP Booster Pump, FNS 60 DE 60, Mastertemp 400, Rainbow 320, Dual Timer w/ freeze protection, Intellichor SWG, TF100 Test Kit, POOL FILLED AUG 3, 2012, ORDER YOUR TF100 KIT FROM http://tftestkits.net
    http://www.troublefreepool.com/under...ie-t49936.html

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    Re: Newly plastered pool does not look right

    This is standard plaster no extra things. Pool is ~20,000 gallons.
    Location: Southern California
    20k gallon +7ft spa, Cartridge, IG , Plaster, Salt system Hayward, Hayward EcoStart Pump, Hayward filter & heater.

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    Re: Newly plastered pool does not look right

    Did they acid wash your pool? Post your chemical test results too - maybe your CH is off or the TA. There are lots of smart people here that can help - I'm a newbie like you - with a major leak in my new pool.
    Helen
    Dallas Area, 16,000 gal IG, Easytouch 8 computer, Intelliflo 3HP Variable Speed pool pump, Pentair Smart Pump 4x160, Pentair 3/4 HP Booster Pump, FNS 60 DE 60, Mastertemp 400, Rainbow 320, Dual Timer w/ freeze protection, Intellichor SWG, TF100 Test Kit, POOL FILLED AUG 3, 2012, ORDER YOUR TF100 KIT FROM http://tftestkits.net
    http://www.troublefreepool.com/under...ie-t49936.html

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    Join Date
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    Re: Newly plastered pool does not look right

    I am a super newbie, too, but I have been doing a lot of reading, especially about grey pools since that is what I want. From what I have read here, grey plaster has a real tendency to mottle and show very uneven color. From what I see here, it is just to be expected with grey. Now, someone who has way more smarts than me can tell you if that is outside the realm of normal mottling.
    ~18,000 gallon
    DE filter/chlorine
    IG Grey Plaster
    25 year old pool w a facelift in 2014

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    Re: Newly plastered pool does not look right

    When the plaster crew was doing the plaster they used propane burner , I do not believe any acid wash was used. My PB told us to leave th e pool alone and for 3 days after plaster. He then added ~1/2 gallon of muriatic acid , and bottle "magic stuff". He told us to brush pool twice a day for 7days and vacuum it daily to get plaster dust out.
    I don't believe any test or chemical were done two weeks following his visit. About the 4th week he came by to drop off some more pool things , add/ed the other 1/2 gallon of muriatic acid , at this point salt was added. And we got our pool test kit. Next few weeks ph was high 8+ , keep adding 1/2 gallon of acid (2 gallons worth over a week time frame), checking PH everyday 1/2 only kept PH down for 1 day by 3'rd day its back to 8+ .

    At this point went back to pool store for refill of Acid and got them to test my water , PH was high 8 , TA 90, CH - 200, Salt 2900. PH kept going up, added more acid, today TA test showed ~70, Added 2lbs of TA up.

    Been reading pool school to try to balance the chem.
    Location: Southern California
    20k gallon +7ft spa, Cartridge, IG , Plaster, Salt system Hayward, Hayward EcoStart Pump, Hayward filter & heater.

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    Re: Newly plastered pool does not look right

    Another picture
    Attached Images Attached Images
    Location: Southern California
    20k gallon +7ft spa, Cartridge, IG , Plaster, Salt system Hayward, Hayward EcoStart Pump, Hayward filter & heater.

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    hookem's Avatar
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    Re: Newly plastered pool does not look right

    I have the exact same issue with my plaster, in fact, your pictures look like it could be my pool. I was told it would start to fade after awhile, but it never did. I have had my pool exactly one year. I did finally get a good test kit and my calcium is through the roof. I live in the Austin area out in the hill country where the water is very hard. Sorry I do not have any suggestions, but wanted to let you know you are not alone and I am very curious what feedback you get.
    16,400 gallons, Pentair 30" sand filter, IG plaster, Pentair 2 HP Pump, Pentair Model 120 Heatpump, Rainbow 320 Chlorinator (no longer used), Polaris 280 Cleaning System, Doheny's Discovery Robotic Cleaner, WPC2 Controller

  9. Back To Top    #9

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    Re: Newly plastered pool does not look right

    In my opinion, that is not normal mottling, and I highly doubt that the color will improve and darken over time and become more even and consistent.

    There can be several reasons for new dark colored plaster jobs to lighten and become uniformly whitish, or become whitish in streaked, splotchy or mottled patterns.

    Generally, if gray or black plaster turns uniformly whiter, then it is probably due to water chemistry issues - perhaps during start-up period (first month), or during the following months. If pH goes above 8.4, (and depending on the TA and CH), a likely uniform whitening (due to scale) may occur. If it is white scale, a simple hand sanding with 100 grit sandpaper will remove the whiteness immediately. Also, a plastic bottle with diluted (50/50) acid and squirted on the plaster surface (under water) will also remove recently scaled plaster on new pools. If the whitish areas are not removed in that manner, then the following issues may be involved.

    If the pool is filled with very soft (aggressive) water, that can dissolve and etch cement material off the surface. That will slightly lighten the color of dark plaster jobs. An acid start-up will do the same thing.

    Another cause of whitening of gray plaster is due to adding calcium chloride to the plaster mix. And understand that there are usually several batches of plaster during the plastering of a pool. Therefore, one batch of plaster can have more calcium chloride added than in other batches.

    Another cause can be from improper troweling procedures, such as adding too much water while troweling and forcing that water into the cement surface. That will skew the water to cement ratio in various or localized areas. When that is the case, it causes a non-uniform whitening, or in other words, it causes streaking, splotchiness, and various forms of mottling.

    Lastly, if the plasterer actually use a propane torch to dry and harden the plaster during a cold winter day, that could also cause a light colored mottling effect in those areas. Not a good thing to do!

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    Re: Newly plastered pool does not look right

    (PS...) I LOVE your tile!
    Helen
    Dallas Area, 16,000 gal IG, Easytouch 8 computer, Intelliflo 3HP Variable Speed pool pump, Pentair Smart Pump 4x160, Pentair 3/4 HP Booster Pump, FNS 60 DE 60, Mastertemp 400, Rainbow 320, Dual Timer w/ freeze protection, Intellichor SWG, TF100 Test Kit, POOL FILLED AUG 3, 2012, ORDER YOUR TF100 KIT FROM http://tftestkits.net
    http://www.troublefreepool.com/under...ie-t49936.html

  11. Back To Top    #11

    Re: Newly plastered pool does not look right

    Thanks for the feed back. Talk to the PB he said the plaster looked normal (which I don't really buy). Asked if I can see other pools he has done with the same color plaster, of course he said yes but I have yet to hear back from him.
    Location: Southern California
    20k gallon +7ft spa, Cartridge, IG , Plaster, Salt system Hayward, Hayward EcoStart Pump, Hayward filter & heater.

  12. Back To Top    #12
    Mod Squad jblizzle's Avatar
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    Re: Newly plastered pool does not look right

    While, that may not be a normal looking plaster job ... if the "smokiness" was fairly uniform throughout and not just in certain areas ... I kind of like the marble look
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Newly plastered pool does not look right

    Quote Originally Posted by jblizzle
    While, that may not be a normal looking plaster job ... if the "smokiness" was fairly uniform throughout and not just in certain areas ... I kind of like the marble look

    me too..
    Helen
    Dallas Area, 16,000 gal IG, Easytouch 8 computer, Intelliflo 3HP Variable Speed pool pump, Pentair Smart Pump 4x160, Pentair 3/4 HP Booster Pump, FNS 60 DE 60, Mastertemp 400, Rainbow 320, Dual Timer w/ freeze protection, Intellichor SWG, TF100 Test Kit, POOL FILLED AUG 3, 2012, ORDER YOUR TF100 KIT FROM http://tftestkits.net
    http://www.troublefreepool.com/under...ie-t49936.html

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    cramar's Avatar
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    Re: Newly plastered pool does not look right

    I love how seemingly all pool installers answer a customers problem: "oh, that's normal".
    Thread after thread I read the same thing when there' s a problem: "Oh, that's normal".
    20' X 54" Sharkline Matrix Resin AGP, 9400 Gallons, Sta-Rite 1 HP Dynamo Pump, 150 lb Pentair Sand Filter, Gorilla Pad,
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    Re: Newly plastered pool does not look right

    im not saying it is right, but i see plaster that looks like that all the time.

  16. Back To Top    #16

    Re: Newly plastered pool does not look right

    After much deliberation and finger pointing (between plaster guys and our pool contractor) it has been concluded that it was poor startup. Now waiting for them to drain the pool and do an acid wash.
    Location: Southern California
    20k gallon +7ft spa, Cartridge, IG , Plaster, Salt system Hayward, Hayward EcoStart Pump, Hayward filter & heater.

  17. Back To Top    #17
    Mod Squad jblizzle's Avatar
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    Re: Newly plastered pool does not look right

    Realize that the acid wash will remove part of the plaster and thus shorten its life.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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