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Thread: Mustard Algae Shock

  1. Back To Top    #1

    Join Date
    Jun 2012
    Howard City, MI

    Mustard Algae Shock

    I have been shocking the past several days for mustard algae. It is slowly getting better, but still not there. We have been using our pool vacuum head to brush pool since it has the small brush bristles on bottom. We have been doing this from outside of the pool.

    Three questions:

    1) Is it safe to get into pool to brush when at high mustard algae shock level?

    2) Should we also vacuum the pool floor and the matter at bottom?

    3) We tested the CYA several days ago when we discovered the algae issue and began the shock process. Do we need to keep testing the CYA throughout the shock process?

    Thank you for all your help.
    Above-Ground Pro Series 18'x48" Metal Frame - Approx 6,450 gallons
    Skimmer Filter System (cartridge): SFS1000 w/ F1500C Pump: 120watts/2.0amps/1500g.p.h
    Purchased & Installed: 6/7/12 (week of)

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Mustard Algae Shock

    Briefly, Yes, Yes and No.

    It's just fine to get in a pool at shock value.

    Brushing and vacuuming is an essential part of the shock must clean up the "debris" as the algae is killed.

    Your CYA is stable in the pool and really only needs re-testing 3-4 times during a swim season.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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