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Thread: Removing antifreeze from lines

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    Removing antifreeze from lines

    So, I know that the RV (pink) antifreeze is safe for the pool, but I seem to remember from last year that it leaves a lingering slight odor to the water and makes the water a bit foamy for while after opening. So I am trying to figure out how to remove it from the lines without it re-entering the pool during opening. Anyone figure out a good way to do this yet?
    TF-100 Test kit, 24,000 gal. free form Vinyl. mybluepool AC-600 SWG, STA-RITE S7MD60 DE filter, 3/4 HP STA-RITE MPRA6D pump, Polaris 280 w/booster, Raypack Propane heater, Looplock mesh cover; All located in New England.

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    Mod Squad tim5055's Avatar
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    Re: Removing antifreeze from lines

    run53 -

    Sorry I can't help, I keep mine open year round - I'm sure someone will be by to add more information.

    Can you do us a favor an add your city and state to your profile as it helps us deliver better answers to questions asked.
    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

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    Removing antifreeze from lines

    I am fortunate in the sense that my pump is below my pool, makes it easier but anyone can do it.

    What I do is put the shop vac on the return and suction lines at the pump and fire it up (the vac). Then I go to the skimmer and the farthest return line and crack them open slightly in order to break the hydraulic lock.

    I know it does not all come out, but it gets a good portion of it out.


    30x20 vinyl IG, Hayward SD60 with Pentair Dynamo 340219 2HP pump, Compupool CPSC24 SWG, Hayward H200FDN heater. APC automatic pool cover.
    Central Illinois

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    Re: Removing antifreeze from lines

    Quote Originally Posted by bdex View Post
    I am fortunate in the sense that my pump is below my pool, makes it easier but anyone can do it.

    What I do is put the shop vac on the return and suction lines at the pump and fire it up (the vac). Then I go to the skimmer and the farthest return line and crack them open slightly in order to break the hydraulic lock.

    I know it does not all come out, but it gets a good portion of it out.


    Sent from my iPhone using Tapatalk
    Hmmmmm....not sure I understand. If I put the shop vac into the lines at the pump, wouldn't I just blow the anti-freeze back into the pool? I must be missing something here.
    TF-100 Test kit, 24,000 gal. free form Vinyl. mybluepool AC-600 SWG, STA-RITE S7MD60 DE filter, 3/4 HP STA-RITE MPRA6D pump, Polaris 280 w/booster, Raypack Propane heater, Looplock mesh cover; All located in New England.

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    Re: Removing antifreeze from lines

    My method is to just unplug the farthest of the two returns, then before screwing the eye back on, I hold the vacuum hose in the return and run the pump for a few minutes. Put the other end of the hose where you want to dump the antifreeze. Then I repeat for our "fountain" returns which are on their own line. Last year it worked great, this year I had the three year old "helping" with the pump switch and I mixed up which valve was which so it didn't go so well. I haven't gotten any foaming, but I did notice the smell and slight pink color to the water, but it only lingers for a week or so and it takes a lot longer than that before the water gets warm enough to get in anyway. With a high air temp of 53 here today, it isn't making any progress either.
    20,000gal in-ground 16x36 sentry pools vinyl liner, Pentair sand filter, Pentair minimax NT heater, auto-cover, Polaris 280 cleaner.

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    Richard320's Avatar
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    Re: Removing antifreeze from lines

    Quote Originally Posted by run53 View Post
    Hmmmmm....not sure I understand. If I put the shop vac into the lines at the pump, wouldn't I just blow the anti-freeze back into the pool? I must be missing something here.
    Shop vacuums are usually wet and dry. They suck liquids just fine.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Removing antifreeze from lines

    Quote Originally Posted by Richard320 View Post
    Shop vacuums are usually wet and dry. They suck liquids just fine.
    Ahhh....now I get it. We are sucking it out. For some reason I was thinking the shop vac was acting as a blower
    TF-100 Test kit, 24,000 gal. free form Vinyl. mybluepool AC-600 SWG, STA-RITE S7MD60 DE filter, 3/4 HP STA-RITE MPRA6D pump, Polaris 280 w/booster, Raypack Propane heater, Looplock mesh cover; All located in New England.

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    Re: Removing antifreeze from lines

    Quote Originally Posted by run53 View Post
    Ahhh....now I get it. We are sucking it out. For some reason I was thinking the shop vac was acting as a blower
    Yep. Just make sure you take the paper filter out of the vac and put the hose on the suction side!!

    You may be able to draw a small amount open with all the lines capped, but cracking them will release the lock.

    I have an auto cover so my return lines are all under water so this is the only way I know how to do it.

    If I didn't mind the AF in the grass I could just open both the valves and pull the skimmer plug and return caps, gravity would do the rest, but I want to capture as much as I can.


    30x20 vinyl IG, Hayward SD60 with Pentair Dynamo 340219 2HP pump, Compupool CPSC24 SWG, Hayward H200FDN heater. APC automatic pool cover.
    Central Illinois

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    Re: Removing antifreeze from lines

    I just use the pump. First I hook up the pump and turn the multi port valve to waste. Then I remove the return plugs and install eye balls. Next I remove the plugs in the skimmers. Next ( prime the pump) stick garden hose in pump basket and turn on the water and fill the pump. when the pump is full of water, close lid, turn pump on, the pump will start sucking in water that fills the lines and goes directly to waste. Bam that's it, you will see the red antifreeze come out from your backwash hose first and then turn clear.

    Also on the valve that controls the drain and skimmer , I put it in the middle so its sucking both from the drain and skimmers.

    After its running clear out of the backwash hose, turn off the pump, turn multi port valve to filter and turn pump back on.
    19,000 gal - Vinyl IG - Sand filter -1.5hp. - Taylor k 2006 - Loop Loc cover

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    Re: Removing antifreeze from lines

    Quote Originally Posted by samt View Post
    I just use the pump. First I hook up the pump and turn the multi port valve to waste. Then I remove the return plugs and install eye balls. Next I remove the plugs in the skimmers. Next ( prime the pump) stick garden hose in pump basket and turn on the water and fill the pump. when the pump is full of water, close lid, turn pump on, the pump will start sucking in water that fills the lines and goes directly to waste. Bam that's it, you will see the red antifreeze come out from your backwash hose first and then turn clear.

    Also on the valve that controls the drain and skimmer , I put it in the middle so its sucking both from the drain and skimmers.

    After its running clear out of the backwash hose, turn off the pump, turn multi port valve to filter and turn pump back on.
    Thanks. Looks like I have several options.
    TF-100 Test kit, 24,000 gal. free form Vinyl. mybluepool AC-600 SWG, STA-RITE S7MD60 DE filter, 3/4 HP STA-RITE MPRA6D pump, Polaris 280 w/booster, Raypack Propane heater, Looplock mesh cover; All located in New England.

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    Re: Removing antifreeze from lines

    Not to hijack a post, but I saw this thread last week and I wondered about the AF as well -- last year was my first time closing and I probably added more AF than necessary. I read that the pink stuff was safe for pool water so I dismissed any concerns about mixing with the pool water when I closed last year but given how much I used (probably 6+gal) I thought maybe I should avoid letting it mix when I open.

    Anyway, I just wanted to pass along that I followed the advice above when I opened this weekend and it worked like a charm. I left the returns plugged and briefly ran the pump to waste so I could purge the AF from the skimmer lines. Then I disassembled my SWG and shoved my shopvac nozzle into the open pipe and used it to suck out the AF from the return lines (doing each plug individually). I repeated the process a couple times until the shopvac bucket was no longer pink. I was surprised at how well it worked -- I don't think any AF ended up in the water.

    Once again, EXCELLENT advice from TFP. Thanks!

    -mike
    40K gallons, IG, plaster, circa 1987, 60sqft Crystal Water DE filter, Hayward Ecostar VS pump, SWG, attached spa w/spillway, 2 skimmers.

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    n240sxguy's Avatar
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    Re: Removing antifreeze from lines

    I think I used around 5 gallons when I closed last fall. I put water in the pump and turned it on once I had all the eyeballs installed and the plugs in the pump. Saw pink for just a second. No foam at all. I don't see where all the extra work would make sense.


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    Re: Removing antifreeze from lines

    Does it hurt your pool or filter if you leave the AF when opening and just continue opening as usual? Don't remove it? = P.S. I am on my mobile and signature info won't post in message, only seems to work on desk top.

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    Re: Removing antifreeze from lines

    Quote Originally Posted by lrkey View Post
    Does it hurt your pool or filter if you leave the AF when opening and just continue opening as usual? Don't remove it? = P.S. I am on my mobile and signature info won't post in message, only seems to work on desk top.
    No it won't hurt anything, but it's just as easy to pump it out as leave it in. I just rather not pump it in the pool if it can be avoided.
    19,000 gal - Vinyl IG - Sand filter -1.5hp. - Taylor k 2006 - Loop Loc cover

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    steveg_nh's Avatar
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    Re: Removing antifreeze from lines

    Geez, last year I didn't even give this a second though. The pool company opened the pool and just let it all into the pool. I didn't notice anything odd about it. They used blue pool stuff vs pink. Not sure if there's a difference or not. This year I'm opening myself.
    24'x40' 25k gal Imperial Mountain Pond IGP, full 28 mil VynAll Ocean Breakers liner. All Hayward system: 140k BTU HeatPro heat pump, 3/4HP single speed TriStar 2" Pump, DE6020 filter, AquaPlus Automation/Salt Chlorination, remote controls, ColorLogic 4.0 lighting. Polaris 280 w/PB4-60 BP. TF100 & K1766 test kits. Rinox Palazzo pavers and Spherik coping. Pool installed 9/2013, project completed 6/16/14.

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    Re: Removing antifreeze from lines

    When u unplug the Jets doesn't the anti freeze go into the pool?? Can u run it on waste with the Jets blocked??
    Quote Originally Posted by samt View Post
    I just use the pump. First I hook up the pump and turn the multi port valve to waste. Then I remove the return plugs and install eye balls. Next I remove the plugs in the skimmers. Next ( prime the pump) stick garden hose in pump basket and turn on the water and fill the pump. when the pump is full of water, close lid, turn pump on, the pump will start sucking in water that fills the lines and goes directly to waste. Bam that's it, you will see the red antifreeze come out from your backwash hose first and then turn clear.

    Also on the valve that controls the drain and skimmer , I put it in the middle so its sucking both from the drain and skimmers.

    After its running clear out of the backwash hose, turn off the pump, turn multi port valve to filter and turn pump back on.
    18x38 IG
    Appox. 85000litres
    Jacuzzi laser sand filter
    1hp pump
    Municipal water

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    Re: Removing antifreeze from lines

    Quote Originally Posted by wantboost View Post
    When u unplug the Jets doesn't the anti freeze go into the pool?? Can u run it on waste with the Jets blocked??
    None comes up through the returns, sometimes when I remove the plugs in the skimmers a little wil mix in with the pool water. But that's nothing to worry about.
    19,000 gal - Vinyl IG - Sand filter -1.5hp. - Taylor k 2006 - Loop Loc cover

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    Propbndr's Avatar
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    Re: Removing antifreeze from lines

    Pumping to waste only clears the suction lines. Any antifreeze you put in the return lines stays in the pipes until you either blow or vacuum it out, or pump it into the pool.
    Steve
    32 X 16 inground, 17260 gallons, Vinyl Liner, Triton II TR-60 filter,
    Sta-Rite 1hp pump Model #MPRA6E-147L, CircuPool SI-30 Plus SWG, TF-100 Test Kit

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