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Thread: Recent plaster discoloration...

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    Join Date
    Feb 2012
    Location
    Fort Worth, Texas
    Posts
    2

    Recent plaster discoloration...

    To whom it may concern:

    I have recently taken over the care of my pool. Over the past few months I have noticed that my pool plaster has begun to dis-color. It seems to be an equal balance of blue’s and grey’s now.

    Pool History...We purchased the house with the pool about 5 months ago. The pool had not been serviced for some time and the water was stagnate and it had black algae. We had the pool drained and pressure washed. Once refilled the pool looked great. The black algae retuned not too long after it was re-filled. The pool was shocked. It stopped the black algae for a while and then it returned for a 3rd time. The pool again was shocked and it has not returned since. It seems the plaster dis-coloration became more obvious as the water temp got colder with the onset of winter. We live in Texas and the average water temp this winter has been between 45 and 55 degree’s.
    Can you please give me some thoughts and possible remedies to fix the issue. I have pictures I can sent too if necessary.

    Thank you, Dan
    Approx. 6,000 Gallon Pool
    System 3 Catridge filters (qty of 2)
    In ground Pool
    Plaster Finish
    Pump- Pentair IntelliFlow-VS-SVRS
    Filter MAX Flow Rate-125 GPM

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,084

    Re: Recent plaster discoloration...

    Hi, Dan,

    Welcome to the forum. The pictures will help a lot so please post them.

    What will help even more is a set of current test results. The forum almost begins and ends with accurate testing of your water because almost every issue with the quality of swimming pool water is due to some parameter being out of whack.

    Post CURRENT results for .....
    FC
    TC
    pH
    TA
    CH
    CYA

    Those abbreviations are found in an article in Pool School in the upper right hand corner of the page if you are not familiar with them.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
    Feb 2012
    Location
    Fort Worth, Texas
    Posts
    2

    Re: Recent plaster discoloration...

    Thank you. I appreciate the advise on the water testing. I will test it asap and get back to you on that. In the meantime I have attacehd a couple of pictures.
    Attached Files Attached Files
    Approx. 6,000 Gallon Pool
    System 3 Catridge filters (qty of 2)
    In ground Pool
    Plaster Finish
    Pump- Pentair IntelliFlow-VS-SVRS
    Filter MAX Flow Rate-125 GPM

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    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,089

    Re: New to "Trouble Free Pool" with a question...

    Sounds a lot like metal staining. Are you using an ionizer or a copper based algaecide?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Join Date
    Oct 2011
    Location
    New Caney, Texas
    Posts
    414

    Re: New to "Trouble Free Pool" with a question...

    Hi dpinch and welcome to the forum.
    18' x 42" Intex (4786 Gal @ 80% capacity) Intex 8110 SWCG, 2000 GPH cartridge filter.
    Full Sun, Well Water, Borates at approx. 50
    TFTestKit-100--The Pool Calculator--Pool School

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    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Recent plaster discoloration...

    Those pictures look familiar!

    Sure looks like Calcium scale to me. Mine tends to look blue-grey when submerged, and a pale tan color when exposed.

    Let me start with the TFP Mantara: Can you post a full set of test results?

    [center:6xl32vr3][/center:6xl32vr3]
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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