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Thread: Yellow spot/stain on spa control

  1. Back To Top    #1

    Join Date
    Jun 2016
    Syosset, NY

    Yellow spot/stain on spa control

    Just openned after 4 years 340 gallon spa.

    Went thru decontamination process..purge and superchlorination to 70ppm.

    I am in the process of increasing CYA with dichlor (27 of 34 ppm of dichlor)

    Starting seeing yellow spots stains on control panel. See pic.

    Chems: tf100
    Temp 100
    Fc : 10 (to much dichlor today)
    Cc .5
    pH: 7.8
    Ta 70
    Ch 150
    Cya 24 ( based on dichlor added)

    Anyone have any idea?

    Attached Images Attached Images
    38k (L - Shaped) Vinyl. 1.5hp Pump, DE Filter

  2. Back To Top    #2

    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Fletcher, OK

    Re: Yellow spot/stain on spa control

    looks like tanning lotion to me...
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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