Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 19 of 19

Thread: Complexity of changing to salt

  1. Back To Top    #1

    Join Date
    May 2015
    Location
    Knoxville TN
    Posts
    26

    Complexity of changing to salt

    35,000 pool. 1 hp pump. Sand filter. 1 1/2" tubing. A waterfall, so aeration should be decent.
    A friend has a swg system in what is probably a 20,000 gallon pool at a home she purchased a little over a year ago. She almost passed on the house because of the pool because she has seen how much time/money I spend on my pool. In brief, she loves the salt system. Says it's a piece of cake to use and way less than half the time and expense I spend on mine.
    I asked at the pool store what it would cost to do a conversion: $1,800 to $2,200. Ouch.
    I'm a fair handyman and have a good plumber on stand-by. Could we make this conversion ourselves? If so, can someone tell me exactly what equipment (size/brand) I would need? What I have seen on-line leading me to believe equipment prices would be around $1,000, but I have read on this thread it's best to use a 40,000 gallon system for a 20,000 gallon pool.
    My pool is green at the moment. Apparently at this point, I have killed the algae and the green is coming from metals (mostly copper?) in the pool. Looks like I'm going to have to drain, refill, and start over so now would be a good time to install the swg.
    Thanks for any guidance
    35,000 gallon gunite pool. 1 hp hayward pump. Sand filter. Waterfall. 1 main drain. 2 skimmers. 4 returns. 1 1/2" PVC tubing. Maytronics robot.

  2. Back To Top    #2
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    15,001

    Re: Complexity of changing to salt

    If you are sure it's metals and it may be...you can try lowering the pH a little and see if it helps. But you may be in for sequestrants, I don't know.

    You can do this, and cheaper than what they are saying I think. Others can weigh in on this better than I can for sure. It isn't complex from a chemical standpoint though at all. And likely a very good plan for your larger pool.

    Welcome to the forum BTW!
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  3. Back To Top    #3
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,495

    Re: Complexity of changing to salt

    Yes, we recommend sizing the unit for twice the size of your pool.

    I'm not understanding the "expense" you are incurring? Are you using TFP methods or still pool store methods?

    If you are a fair handyman then the installation should be fairly easy. As for the plumber, you only really need to cut your return pipe to insert the cell.

    But, I'm going to cut to the chase - before you look to a SWCG as your savior you really need to get control of you pool. In your other thread you talk of algae and copper. I recommend you drain/refill and get control of your pool using our methods manually before you worry about a SWCG.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  4. Back To Top    #4
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    15,001

    Re: Complexity of changing to salt

    Good suggestions Tim, thank you. I did not see or remember the other thread.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  5. Back To Top    #5
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Complexity of changing to salt

    Buying a SWG and installing it yourself should be under $1000, possibly quite a bit under depending on what brand you end up selecting. If you have any PVC plumbing experience and any home AC wiring experience it is a very simple install.
    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

  6. Back To Top    #6
    Saturn94's Avatar
    Join Date
    Mar 2015
    Location
    Virginia
    Posts
    461

    Re: Complexity of changing to salt

    Quote Originally Posted by tim5055 View Post
    Yes, we recommend sizing the unit for twice the size of your pool.

    I'm not understanding the "expense" you are incurring? Are you using TFP methods or still pool store methods?

    If you are a fair handyman then the installation should be fairly easy. As for the plumber, you only really need to cut your return pipe to insert the cell.

    But, I'm going to cut to the chase - before you look to a SWCG as your savior you really need to get control of you pool. In your other thread you talk of algae and copper. I recommend you drain/refill and get control of your pool using our methods manually before you worry about a SWCG.
    +1

    If using the methods taught here, a SWCG isn't going to save you any money. The main reason for getting a SWCG is convenience.
    20k IG vinyl liner/Aqua Rite SWCG, T-15 cell/Hayward Pro Grid 6020 DE filter/Polaris 280 with booster pump/Hayward Superpump 1 hp/city water/pool installed March 2004

  7. Back To Top    #7


    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Location
    Fletcher, OK
    Posts
    3,346

    Re: Complexity of changing to salt

    if you order today or tomorrow you could get the Curcupool SI 60 or 60 Plus for the price of the SI45...

    CircuPool® Si-45 PLUS Salt Pool System
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

  8. Back To Top    #8

    Join Date
    Feb 2014
    Location
    Upstate, NY
    Posts
    390

    Re: Complexity of changing to salt

    Quote Originally Posted by JasonLion View Post
    Buying a SWG and installing it yourself should be under $1000, possibly quite a bit under depending on what brand you end up selecting. If you have any PVC plumbing experience and any home AC wiring experience it is a very simple install.
    Exactly what the Hayward unit cost me. My time, my labor.
    20X36 IG vinyl (18,000 gal), 3 sheer descents, Max-Flo 1.5hp VS 2300, Aquarite T15 SWG, C3030 filter, 250,000 BTU heater, Sharkvac XL (Hayward equip)

  9. Back To Top    #9

    Join Date
    May 2015
    Location
    Knoxville TN
    Posts
    26

    Re: Complexity of changing to salt

    I've been using the TFP (or at least trying to) method for a little less than 4 years and getting the bleach from Sam's/Costco. Heavy boxes and typically purchasing 10 at a time. When all is in sync, lasts well less than a month. Definitely less than what I was spending at the pool store, but still, if there is a cheaper (time/money) alternative, I would like to take advantage of it. I have owned the pool 9+ years, and while I have had an algae problem maybe 3-4 times in that period, taking care of it was relatively easy.
    I wish I could re-enact the series of events that led up to a reading from the calculator indicating I should add 64 gallons of muriatic acid (again, thankfully, a 34 gallon purchase at Home Depot wiped out their supply) but at this point, it's water under the bridge. I did not dream the reading and have no idea what happened. Not trying to deny culpability and an error on my part. Since Spring, I was getting TA readings off the chart and adding 4 gallons of muriatic acid had not touched it up to that point.
    Certainly getting control of the pool is the major issue for me. But even in this thread, there is disagreement on how to do just that: Lowering Ph and adding sequestrants, or draining and starting over. And while I would most definitely like to avoid a drain and refill, double the dosage of sequestrants has not worked,
    35,000 gallon gunite pool. 1 hp hayward pump. Sand filter. Waterfall. 1 main drain. 2 skimmers. 4 returns. 1 1/2" PVC tubing. Maytronics robot.

  10. Back To Top    #10
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Complexity of changing to salt

    The suggestion to drain and start over is based on something you posted elsewhere. Only a few of us read every post on the forum. Most go by what you have posted in the current topic. If you give us incomplete information we can't properly answer your questions. So if you see any disagreement, it is because you are giving inconsistent information.
    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

  11. Back To Top    #11
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,994

    Re: Complexity of changing to salt

    Adding a SWCG will take away the extra work and expense of buying bleach. Especially for a pool as large as yours. You will need a SWCG with a capacity of 60k gallons. I love my SWCG and would never have another pool without one.

    If you get a suspicious result or suggestion from Poolmath, or anyone else for that matter, you should double check the information. At the bottom of Poolmath there is a tool to see what the impact is for adding an amount of chemical to your pool. Yes, I believe that you should be familiar enough with your pool to know that 64 or even 34 gallons of muriatic acid does not seem right. You have owned the pool for 9 years. How many times have you put 34 gallons of acid in it?

    There will be little, if any, disagreement from experts and mods on this site as to how to get your pool into balance. And Pool School always says the same thing. It is the re-asking of questions with differing amounts of information that yields inconsistent results.

    Post a set of test results and we can get your chlorine, CYA, PH and TA in balance in a matter of days.

    Here are some of my fave Pool School articles in case you missed any of them.
    TFPC for Beginners
    ABC's of Pool Water Chemistry

    Here are the Recommended Levels for your pool.
    Here is the Water Balance for a saltwater pool.
    Here are the Recommended Pool Chemicals and how to add them.
    Use PoolMath to figure out how much to add.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  12. Back To Top    #12

    Join Date
    May 2015
    Location
    Knoxville TN
    Posts
    26

    Re: Complexity of changing to salt

    Pooldv,
    Agreed.
    Out of town emergency and have to walk out the door right now. Should be back tomorrow. I will put up the results as soon as I get back. Any chance of avoiding a drain and refill?
    35,000 gallon gunite pool. 1 hp hayward pump. Sand filter. Waterfall. 1 main drain. 2 skimmers. 4 returns. 1 1/2" PVC tubing. Maytronics robot.

  13. Back To Top    #13
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Location
    Longview, Texas
    Posts
    4,926

    Re: Complexity of changing to salt

    Hi Kermit,
    we can help get your water clean and balanced if you have one of the recommended test kits and can test the water and post the results. It will take some time. It didnt get this way instantly and there isnt an instant cure for it.

    Regarding the copper, that can be sequestered with something like Metalmagic or Jacks magic. You may need to use sequestrant for a while though, until its all finally gone.

    Like pooldv and your friend, I love my SWG. It is convenient for sure. With 35K gallons, you will need a 60K salt system.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  14. Back To Top    #14
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,994

    Re: Complexity of changing to salt

    Good luck with your emergency. At this point the only reason that I am aware of that might require a partial drain is if your CYA is over 80 or 90. Post some test results when you can and we will get to work on it.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  15. Back To Top    #15

    Join Date
    May 2015
    Location
    Knoxville TN
    Posts
    26

    Re: Complexity of changing to salt

    OK. Thanks
    35,000 gallon gunite pool. 1 hp hayward pump. Sand filter. Waterfall. 1 main drain. 2 skimmers. 4 returns. 1 1/2" PVC tubing. Maytronics robot.

  16. Back To Top    #16

    Join Date
    May 2015
    Location
    Knoxville TN
    Posts
    26

    Re: Complexity of changing to salt

    Emergency resolved, pooldv. Wife was stranded at airport 225 miles away and all flights to final destination were cancelled.
    Test results as follows:
    Ph: Too high to read. Guessing at 9
    FC: 9.5
    CC: .5
    TA: 130
    CH: 600 (!!!!)
    CYA: 23

    I have started draining
    35,000 gallon gunite pool. 1 hp hayward pump. Sand filter. Waterfall. 1 main drain. 2 skimmers. 4 returns. 1 1/2" PVC tubing. Maytronics robot.

  17. Back To Top    #17
    Seanhan's Avatar
    Join Date
    Mar 2013
    Location
    Fort Worth Texas
    Posts
    297

    Re: Complexity of changing to salt

    You might want to think about a D.E. Filter , really makes a big difference !!!
    Sean Hannon
    30,000 Gallons gunite pool Coated by Fibertech
    Hayward Pro Grid 72 / Hayward multiport
    Circupool V3 VS pump
    CirCupool SWG RJ 60, 400.000 btu raypak , Built in SPA

  18. Back To Top    #18

    Join Date
    May 2015
    Location
    Knoxville TN
    Posts
    26

    Re: Complexity of changing to salt

    Thanks, Seanhan. I'll read up on the DE filter
    35,000 gallon gunite pool. 1 hp hayward pump. Sand filter. Waterfall. 1 main drain. 2 skimmers. 4 returns. 1 1/2" PVC tubing. Maytronics robot.

  19. Back To Top    #19

    Join Date
    May 2015
    Location
    kingston springs, tn
    Posts
    101

    Re: Complexity of changing to salt

    Quote Originally Posted by JasonLion View Post
    Buying a SWG and installing it yourself should be under $1000, possibly quite a bit under depending on what brand you end up selecting. If you have any PVC plumbing experience and any home AC wiring experience it is a very simple install.
    Found a Pentair IC40 with power supply on Ebay for $729.00 last month... Best pool decision I have made so far. Chose the Pentair due to space restrictions / unit contains the flow switch. Also like the idea when the SWG needs replaced the control circuitry is replaced at the same time.
    18x36 IG vinyl 18,000 gal, Hayward super pump 1hp - 1.5" pipe, Pentair Triton TR-60 sand, Pentair Itellichlor IC-40 SWG, Pentair Intellibrite 5G 12v color LED light, Polaris 280 cleaner, Hayward Booster pump, Intermatic Power / Timers.

Posting Permissions

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