Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Jack magic purple vs magenta stuff

  1. Back To Top    #1

    Join Date
    May 2015
    Location
    Union, NJ
    Posts
    118

    Jack magic purple vs magenta stuff

    Hi! So I am about to close my pool and since I got scale build up when I opened this spring, I want to prevent scaling when closing. I am considering adding a jack magic product as suggested by a friend. However, I am not sure which product is right as they seem to be very similar. Can someone that has knowledge of the products advice what is the difference between JACK MAGIC PURPLE VS MAGENTA STUFF?
    20,000 Gallons, 33.9 x 19.9 free form inground plaster pool 7 feet deep with Spillover Spa, Salt Generator (Fusion Soft),Heat Pump, Single Speed 2 HP Pump, D.E. Filter. Zodicac PDA, IQ900RS Controller.

  2. Back To Top    #2
    JoyfulNoise's Avatar
    Join Date
    May 2015
    Location
    Tucson, AZ
    Posts
    8,734

    Re: Jack magic purple vs magenta stuff

    I believe the PURPLE product is HEDP based (phosphonate) while the MAGENTA product is PAC based (polyacrylic acid). Both work on calcium scale but the PAC based sequestrant is better in high TDS (salt water generator) environments. The HEDP based sequestrant breaks down over time and forms orthophosphates (PO4) which is algae food (nutrients). In a stagnant water environment such as a closed pool, not having any additional sources of nutrients in the water is probably the most optimal approach so you could then use the MAGENTA stuff since PAC simply breaks down into carbon compounds (such as dissolved CO2).

    Lowering your TA as much as is practical will help in preventing scale. What are your latest test results?
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

  3. Back To Top    #3

    Join Date
    May 2015
    Location
    Union, NJ
    Posts
    118

    Re: Jack magic purple vs magenta stuff

    Hi Matt!

    My latest test results are as follows:

    FC 4
    PH 7.4
    TA 60
    CH 475 I know is high...I have hard water so I always monitor to make sure my CSI is within limits
    CYA 60 Getting it up to 80 soon I ordered stabilizer.
    CC 0
    Salinity 3300
    20,000 Gallons, 33.9 x 19.9 free form inground plaster pool 7 feet deep with Spillover Spa, Salt Generator (Fusion Soft),Heat Pump, Single Speed 2 HP Pump, D.E. Filter. Zodicac PDA, IQ900RS Controller.

  4. Back To Top    #4
    JoyfulNoise's Avatar
    Join Date
    May 2015
    Location
    Tucson, AZ
    Posts
    8,734

    Re: Jack magic purple vs magenta stuff

    Quote Originally Posted by RESISTENCIA13 View Post
    Hi Matt!

    My latest test results are as follows:

    FC 4
    PH 7.4
    TA 60
    CH 475 I know is high...I have hard water so I always monitor to make sure my CSI is within limits
    CYA 60 Getting it up to 80 soon I ordered stabilizer.
    CC 0
    Salinity 3300
    Haha, got you beat there - my CH is north of 950ppm...but no scale at all....

    Your numbers look really good. Your CSI is -0.4 (a bit negative, but ok since your pH will no doubt rise over winter). You can add the magenta stuff and it should work fine. Calcium carbonate is actually more soluble in cold water than hot water, so I think you will be fine. As I said, your pH is likely to climb as the pool sits stagnant, so there's no need to really adjust anything.

    As far as CYA goes, if no one is using the pool then I see no reason to raise the CYA. As the weather cools, your FC demand is going to decrease a lot and there's no need to keep the SWG running. I find that switching over to manual chlorination with bleach is easier once the water temps get below 70F. So you can save the CYA for the spring time when you open and rebalance.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

Posting Permissions

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