Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 3 of 3

Thread: Need help understanding SWG

  1. Back To Top    #1

    Need help understanding SWG

    I need a little bit of help understanding my SWG. I have a auto pilot nano. When it shows petrified % what does that mean? It defaults to 50%. The nano is showing 3100 ppm but when I check the chlorine levels when it is reunning the pool shows high but when I turn it off for 10 or so hours and check it again it show almost no chlorine levels. I have read that manual over two or three time and it dose not make since to me. If someone could give me a basic understanding of this device I would appreciate it.
    Attached Images Attached Images

  2. Back To Top    #2

    TFP Guide

    chiefwej's Avatar
    Join Date
    Jun 2011

    Re: Need help understanding SWG

    Do you have any stabilizer (CYA) in the pool?
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

  3. Back To Top    #3

    Join Date
    Apr 2007
    Ft Lauderdale, Florida

    Re: Need help understanding SWG

    It should read "Purifier"%, which is the amount of time that the cell is energized (making chlorine), within a 15 minute cycle. The higher the number, the longer the cell stays on.
    The Nano has a feature called Automatic Temperature Compensation, that will automatically adjust the Purifier % higher or lower, based on changes in water temperature.
    As Chiefwej asked, what is your stabilizer level? With an outdoor pool, the chlorine has little protection from the sun consuming the chlorine as it goes back to the pool.
    It would also help to provide a complete water chemistry test:
    Free Chlorine, Total Chlorine, pH, Total Alkalinity, Calcium Hardness, Salt, and Stabilizer.
    Sean Assam -
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps
    AutoPilot Salt Chlorine Generators

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts