Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: What Size SWG Should I Get?

  1. Back To Top    #1

    Join Date
    Apr 2009
    Location
    Orange Park, FL
    Posts
    104

    What Size SWG Should I Get?

    I finally have my CYA down to 90 from a whopping 160+. Getting ready to make the purchase and would appreciate your recommendations on the size I should get. Right now, it looks like I'll be going with Hayward and getting the SwimPure Plus or Aqua-rite. I believe they are the same systems. Depending on which pool size calculator is used, my gallonage is btw 13,200-14,000. So, let's use the highest number - 14K. Should I go with the 25K model or 40k model? After researching and talking to folks, I've rec'd mixed advice. Some say, "go with the largest you can afford", others say, "go 2x the size but 3x would be overkill" I live in Florida and my pool is in the sun 75% of the time - only used by 2 adults - if any of that makes a difference.
    15x30 IG vinyl liner pool, pool cage
    Hayward S-220T high rate sand filter and Hayward super pump w/1hp motor
    Hayward SwimPure Plus SWG
    Polaris 380 cleaner and booster pump

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: What Size SWG Should I Get?

    3 times larger is starting to stretch it a little. I would stick with the 25K unit.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3
    Guest

    Re: What Size SWG Should I Get?

    Jason,

    This is an electrical device in which the electrodes wear over time while producing the chlorine gas. The larger electrodes the more material to wear.

    Based on my chemistry/physics/science experience, I would think getting the larger unit and running it at a lower setting (on those units with variable settings) would be the better long-term way to go.

    Does anyone have experience with this?

    I was planning on getting the 40K AquaRite unit since I could probably run it at about 30% capacity and this should extend the life of the unit.

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: What Size SWG Should I Get?

    Yes, but if you get too large a unit, you lose the ability to make fine adjustments in the percentage setting. For example, if the unit is 5 times to large, you are only adjusting it between 0 and 20%, but in the spring you run at about 1/4 the setting you run it in the summer, which means you are adjusting between 0 and 5%, which doesn't give you much control over the chlorine level.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  5. Back To Top    #5
    Guest

    Re: What Size SWG Should I Get?

    Dang, that practical reality.

    Besides I see the replacement cells for the 15K are only about $215, so even buying the smaller unit and replacing the cell once is still cheaper (oops, more economical) than buying the 40K unit once.

  6. Back To Top    #6

    Join Date
    Apr 2009
    Location
    Orange Park, FL
    Posts
    104

    Re: What Size SWG Should I Get?

    I ended up purchasing the 25K unit on sale plus a rebate.
    15x30 IG vinyl liner pool, pool cage
    Hayward S-220T high rate sand filter and Hayward super pump w/1hp motor
    Hayward SwimPure Plus SWG
    Polaris 380 cleaner and booster pump

  7. Back To Top    #7

    Join Date
    May 2009
    Location
    Jasper, TN
    Posts
    249

    Re: What Size SWG Should I Get?

    where did you get it and the price if you don't mind me asking?

    I'm looking into a swg as well for a 14k AGP
    24' x 52" AGP = 13.5k gallons
    Dynamo 2.0 HP pump,Sand Dollar sand filter
    Polaris 65 vacuum (good when there are a ton of leaves on bottom), Pool Rover Jr. (LOVE it, but power box dead right now), AquaCritter (an excellent suction side cleaner)

  8. Back To Top    #8

    Join Date
    Apr 2009
    Location
    Orange Park, FL
    Posts
    104

    Re: What Size SWG Should I Get?

    Quote Originally Posted by rastoma
    where did you get it and the price if you don't mind me asking?

    I'm looking into a swg as well for a 14k AGP
    Pinch a Penny has a sale going on now and equipment is 15% off. Cost varies depending on the size unit purchased. The 25K unit came to about $800
    15x30 IG vinyl liner pool, pool cage
    Hayward S-220T high rate sand filter and Hayward super pump w/1hp motor
    Hayward SwimPure Plus SWG
    Polaris 380 cleaner and booster pump

  9. Back To Top    #9

    Re: What Size SWG Should I Get?

    Quote Originally Posted by mtbarr64
    Jason,

    This is an electrical device in which the electrodes wear over time while producing the chlorine gas. The larger electrodes the more material to wear.

    Based on my chemistry/physics/science experience, I would think getting the larger unit and running it at a lower setting (on those units with variable settings) would be the better long-term way to go.

    Does anyone have experience with this?

    I was planning on getting the 40K AquaRite unit since I could probably run it at about 30% capacity and this should extend the life of the unit.
    I agree on this view:

    I had a ESC unit installed when I built my pool and even running at 100% it just would not keep up. After adding Ch for nearly 2 years on a almost weekly basis I said the **** with this and bought a new ESC 36. I ran it for the past 18 mo and it runs comfortability at 30-40%.

    I also have to somewhat agree with the other poster on the lack of fine tuning. I can only tune my ESC in increments of 10%. That said, if I run too long at 40% in a few weeks I will over ch and have to drop down to 30%. After a while I will need to kick that up to 40% as 30% does not gen quite enough...but its the turn of a knob so its easy to adj.
    Don
    Scottsdale, AZ
    Pool: 23,500 gal, plaster, built in '75, diving pool, DE system, 1 HP pump all original except the DE tank.

Posting Permissions

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