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Thread: Testing for FC with TF-100

  1. Back To Top    #1

    Join Date
    Jun 2016
    Bellevue, NE

    Testing for FC with TF-100

    When doing the chlorine drop test where you put that powder in the cylinder of water and it turns you have to wait a certain amount of time after each drop of R871? I can get it to go clear but if I let it sit there for a few seconds it sometimes will go a little pink again until I add another drop. Does it need to be clear for a certain period of time after adding the last drop to get a good reading?

    IG 23,700 Gallon Vinyl lined Pool
    Sand Filter
    Bellevue, NE

  2. Back To Top    #2
    epro05's Avatar
    Join Date
    Jun 2014
    Keller, Texas

    Re: Testing for FC with TF-100

    Just keep dropping about 1 drop per second until it turns clear. Don't wait between drops.
    27,500 gallon in ground gunite/plaster (1995). Attached Spa with fountain, spillway, and 2 lion heads streaming into the pool. Hayward pump and AO Smith UST1152 1.5 hp motor (single speed). Hayward 60 sq ft DE Filter (Model DE-6000). Kreepy Krauly cleaner.

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