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Thread: SWCG vs. Liquidator

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    SWCG vs. Liquidator

    I'm not sure if this is the most appropriate category, but let's give it a shot.

    I'm currently considering the purchase of a Liquidator. Before doing so, I'd like to hear your opinions of going with the Liquidator versus a Saltwater Chlorine Generator. Clearly, the SWCG will be more money upfront. I am located in South Jersey, so my pool season is at best, mid-May to end of September, with perhaps a little longer for using the spa.
    28,000 gallon gunite/white plaster with 30ft RBB and 2ft sheer descent, 100 sq ft thermaledge, 50sq ft spa w/ 6 jets
    2HP Jandy pump, 60sq ft Jandy DE filter, 400,000 BTU Jandy LX Nat Gas Heater, 2 Jandy color lights + Jandy color spa light, Jandy Aqualink RS6, Jandy AquaPure 1400

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    SeanB's Avatar
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    For what it's worth, we have a SWCG on our pool. My parents are currently building a pool and after discussion their options, they just ordered a Liquidator. They will also have an inline puck feeder as back-up.

    I like my swcg, but the various quirks can be bothersome. We had to have one cell replaced within the first year, and inacurate readings in cold weather are kind of annoying. To me the Liquidator eliminates most of the disadvantages of using bleach and gives most of the advatages of a swcg. And if you want a salt pool, you can still add salt.

    I think a SWCG is probably still the most carefree of options though. Also, I think the stone issues and corossion have been greatly overblow and exagerated and would not give that much weight in the decision making. But that's just me - you'll have to do your own research and come to your own conclusions.
    TFP Founder

    My Pool: 13K gal IG gunite with 7' spa, Pentair Cartridge Filter, Intellichlor IC40 SWG, Polaris 280 Cleaner, TF-100 Test Kit w/ salt test.

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    I am on my second season with a Liquidator and am very happy with it. I also salt my pool to 2700ppm for feel.
    6000 gal inground fiberglass
    1.5hp pump / sand filter
    Liquidator

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    Quote Originally Posted by keithw
    I am on my second season with a Liquidator and am very happy with it. I also salt my pool to 2700ppm for feel.
    Very interesting that you add salt to your pool even though it isn't a SWG. I've not heard of doing that before. Aside from keeping check on salinity levels, are there any other steps that you take or adjustments to your chemistry that you must take into account when salting a non-SWG pool? Seems that you really wouldn't need to as salt is pretty inert.

    Craig
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
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    "It depends."- JohnT

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    I also have a liquidator and I do like the way it works. It is a simple design which I feel is less maintenance. I have never had a SWG so i cant say much about those but I think you will probably her the pros and cons from others.

    Pros. Liquidator
    price
    ease of install and everything you need will come with it.
    being able to leave for vacation and not worry about the cl and I don't get the PH rise with the liquidator

    cons liquidator
    it takes a learning curve to get it set right
    still have to carry the bleach to fill the liquidator
    I feel the liquidator would freeze very easy so I don't put it on till May and remove it in Oct. There just doesn't seem to be enough flow to keep it from freezing. It is easy to remove and plug the jets.
    your pump has to be ruining for the liquidator to work

    I do like the simple design of the liquidator and had no problems with it last year time will tell. It is so simple I don't expect any problems.
    Ric W
    My Pool
    8605 gal fiberglass, 3/4 hp pump, sand filter, aquabot cleaner, heat siphon heat pump, tiger river(sumatran) spa

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    SeanB's Avatar
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    Ric, your con about the Liquidator isn't really a con as that necessity is shared by all automatic systems, including swcg's.

    Good analysis.
    TFP Founder

    My Pool: 13K gal IG gunite with 7' spa, Pentair Cartridge Filter, Intellichlor IC40 SWG, Polaris 280 Cleaner, TF-100 Test Kit w/ salt test.

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    Re: SWCG vs. Liquidator

    I would like to see what the actual annual cost comparison of the two methods.

    How much BBB cost per year?

    How much SWG?
    Muratic Acid?
    CYA?
    Shockit?

    MY COSTS for SWG
    My SWG pool uses about a gallon of acid every 6 weeks. 9 gallon a year ($40)
    CYA None
    Shockit None if you run the SWG enough to maintain Chlorine levels
    Very little maintenance other than a water tests from the local Leslie's
    So I see not much costs
    In-Ground SWG pool 11,000 gal., Jandy CL460 Filter, 1.5hp Stealth Jandy pump, Paramount PV3 In-Floor cleaning sys., Goldline SWG, Hayward Color Logic 2.5 LED Light

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    Re: SWCG vs. Liquidator

    Quote Originally Posted by iggy
    I would like to see what the actual annual cost comparison of the two methods.

    How much BBB cost per year?

    How much SWG?
    Muratic Acid?
    CYA?
    Shockit?

    MY COSTS for SWG
    My SWG pool uses about a gallon of acid every 6 weeks. 9 gallon a year ($40)
    CYA None
    Shockit None if you run the SWG enough to maintain Chlorine levels
    Very little maintenance other than a water tests from the local Leslie's
    So I see not much costs
    You can use this calculator to compare costs:

    http://www.tdconsulting.com.au/bleach1.php

    Just divide all numbers by 5 cause it uses 5 year period.

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    SeanB's Avatar
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    Re: SWCG vs. Liquidator

    Quote Originally Posted by iggy
    I would like to see what the actual annual cost comparison of the two methods.

    How much BBB cost per year?

    How much SWG?
    Muratic Acid?
    CYA?
    Shockit?

    MY COSTS for SWG
    My SWG pool uses about a gallon of acid every 6 weeks. 9 gallon a year ($40)
    CYA None
    Shockit None if you run the SWG enough to maintain Chlorine levels
    Very little maintenance other than a water tests from the local Leslie's
    So I see not much costs
    A properly maintained pool using a Liquidator would not need any more CYA or "Shockit" than a swcg pool. The only differences would be the cost of buying the Liquidator, and the bleach, vs the cost of the swcg, electricity and increased acid.
    TFP Founder

    My Pool: 13K gal IG gunite with 7' spa, Pentair Cartridge Filter, Intellichlor IC40 SWG, Polaris 280 Cleaner, TF-100 Test Kit w/ salt test.

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    Re: SWCG vs. Liquidator

    Quote Originally Posted by SeanB
    A properly maintained pool using a Liquidator would not need any more CYA or "Shockit" than a swcg pool. The only differences would be the cost of buying the Liquidator, and the bleach, vs the cost of the swcg, electricity and increased acid.
    Plus allocated capital cost of initial SWG purchase plus regular cell replacement. These are actually the biggest parts of the cost.

    With gasoline costing so much these days, just taking a trip to/from the pool store to get chlorinating liquid starts to add (a little) to its cost. Also, if you're using bleach and recycling bottles, there's that environmental hit (getting bottles refilled at a pool store is better).
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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    Silly questions....

    1) Is it possible to use 12% (Liquid Shock as my local pool store calls it) in my Liquidator?
    2) If yes... How do I compare the costs between the 12% and 6%? I am thinking that I should break down the cost down to the ounce since the containers are different sizes. Since the 12% is twice the strength, should I divide the cost of the 12% by 2 to get an apple to apple comparison? All this is mute if I can't use 12% in the unit.

    3 bottles (182oz) of 6% at $6.78 from Sams. (.04 per oz)
    4 bottles (128oz) of 12% at $13.00 from the Pool Store. (.10 /2 = .05 per oz)
    20k Gunite/Prism Blue-Pebblesheen, Pentair Tagelus TA-100D Sand Filter, Heliocol Solar Water Heater, 2 bubblers and 2 waterfalls installed 2007, 3hp IntelliFlo VS Pump 011018 installed 2013, Aquabot Turbo T4 RC and Stenner 45MHP10 w/The Liquidator container installed 2012.
    Antigua Spa by Artesian Spas: 325 gl, 52 jets, 6 hp 2 sp & 6 hp 1 sp, Circulation System 24 Hour Whisper Pure, Ozonator, LED digital lighting, The Artesian Pillowfall installed 2007.
    Retired: 2hp Pentair Whisperflow, Legend Platinum w/booster pump, PH Adjuster

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    I put salt in my pool simply because it makes the water feel less harsh.

    Here's my cost analysis on the Liquidator.

    Cost was $133.00. During the summer, I use about a 1 - 2 gallon a week at $2ish. That's pretty much it. I never shock and rarely have to add anything else. Well maybe a box of Borax throughout the summer.

    But I found the real advantage to be how clear the pool is. I have never had an SWG but used pucks for many years and manually added bleach for a year or two and the Liquidator makes the water seem much clearer than either of the two other methods.
    6000 gal inground fiberglass
    1.5hp pump / sand filter
    Liquidator

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    JasonLion's Avatar
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    Sabot, you are doing the math correctly. You can use 12.5% in the liquidator but you need to keep in mind that 12.5% has a much shorter shelf life than 6% and can lose strength in direct sun light. I would only use 12.5% if you can keep the liquidator out of direct sunlight and are using up the bleach in under six weeks from when you bought it. Some people make covers for their liquidator for this very reason.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    I made a cover a few weeks back for mine, for it does get the morning sun. I noticed with my unit that the vinyl output hose has clouded up with the exposure to the chlorine and the check valve was not working correctly. I am in the process of replacing a few items. See this thread for more: http://www.troublefreepool.com/viewtopi ... 6&start=80

    I really don't see a benefit with going with the 12.5% at this point. The costs are real close at this point. Shelf life is another factor. I need to talk to the pool store to see if they will carry not just the Liquidator but also 6% in large reusable containers. I have read that some stores do this, wonder what size container they use?
    20k Gunite/Prism Blue-Pebblesheen, Pentair Tagelus TA-100D Sand Filter, Heliocol Solar Water Heater, 2 bubblers and 2 waterfalls installed 2007, 3hp IntelliFlo VS Pump 011018 installed 2013, Aquabot Turbo T4 RC and Stenner 45MHP10 w/The Liquidator container installed 2012.
    Antigua Spa by Artesian Spas: 325 gl, 52 jets, 6 hp 2 sp & 6 hp 1 sp, Circulation System 24 Hour Whisper Pure, Ozonator, LED digital lighting, The Artesian Pillowfall installed 2007.
    Retired: 2hp Pentair Whisperflow, Legend Platinum w/booster pump, PH Adjuster

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    Quote Originally Posted by keithw
    But I found the real advantage to be how clear the pool is. I have never had an SWG but used pucks for many years and manually added bleach for a year or two and the Liquidator makes the water seem much clearer than either of the two other methods.
    Trust me, the water is equally clear with any system (if everything done correctly), as long as it is your system
    It's just psychological perception of things, like the grass was greener back in the days etc...

  16. Back To Top    #16
    As far as the pool being clearer, I think that the liquidator helps. There is sludge like substance on the bottom of the Liquidator that would of ended up in the pool if CL was to be poured in manually also the addition of CL constantly instead of dumping a gallon of CL all at once probably helps.

    One important factor which I do not hear very often is electical use of a SWCG. I read a post some where that said it was a very significant cost and that the SWCG companies down play.

    I hope some one that breaks down electrical cost can do one for SWCGs.

    I pay $3.99 for 2.5 gals of 10.5% CL at my local pool store. Some times they run a special buy two get one free so I get 7.5 gals (15 gals of store bought CL) for $8. That's $.53 (cents) per gallon of store bought bleach. They also have a CL card that every 10 refills get one free. So, for me buying CL at my pool store is a no brainer.

    The biggest down side of CL is getting your clothes bleached out. I have ruined maybe 10 shorts and 10 shirts adding CL to my pool manually. Since I add CL to my Liquidator maybe once a week, I just change into one of my bleached shorts and change back afterwards.
    20x40 24,000 gal IG plaster/CircuPool RJ45 SWG/2 skimmer/2sp 2.5hp Jandy Stealth/340sq ft cart filter/600sqftHeliocol Solar Panels/6ft semi circlr tanning ledge/25ft deep end bench/5ft sheer descent/2 lion head water features/1300sqft travertine paver/2 Colorlogic lights/Hayward Navigator/3step 2ft raised bond beam

  17. Back To Top    #17
    JasonLion's Avatar
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    The electrical costs of the SWG are minor compared to everything else. The average SWG might draw 1/2 amp peak compared to a pump that draws 5 to 15 amps and is running much longer than the SWG is actually active. In most situations main cost for a SWG is the cell.
    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

  18. Back To Top    #18

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    Quote Originally Posted by JCJR
    One important factor which I do not hear very often is electical use of a SWCG. I read a post some where that said it was a very significant cost and that the SWCG companies down play.
    Us? Play down our major advantage? Never!

    We actually try to yell at every corner that the chlorine produced by SWG is much cheaper than buying it in store, if you don't count capital costs.

    Even if you do count the capital costs, depending on your chlorine demand there can still be quite substantial savings.

    It's usually the small pools or pools with short open season/low chlorine demand which are financially better off using liquidator or just manual method.

  19. Back To Top    #19
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    Quote Originally Posted by Strannik
    Quote Originally Posted by JCJR
    One important factor which I do not hear very often is electical use of a SWCG. I read a post some where that said it was a very significant cost and that the SWCG companies down play.
    Us? Play down our major advantage? Never!

    We actually try to yell at every corner that the chlorine produced by SWG is much cheaper than buying it in store, if you don't count capital costs.

    Even if you do count the capital costs, depending on your chlorine demand there can still be quite substantial savings.

    It's usually the small pools or pools with short open season/low chlorine demand which are financially better off using liquidator or just manual method.

    Good Statement Strannik from downunder.
    I have a SWG and I live in Arizona where the swim/warm season is long and the sun likes to eat chlorine up.
    In that case I can see why the SWG would be cheaper in the long run even with its initial costs.
    I have had other types of pools and so far for me it is cheaper and less of a headace to maintain.
    And I don't have to maintain a 40lb bucket of 3" chlorine pills.

    How long is your swim season in Brisbane, Australia

    Iggy from the cool part of Arizona
    In-Ground SWG pool 11,000 gal., Jandy CL460 Filter, 1.5hp Stealth Jandy pump, Paramount PV3 In-Floor cleaning sys., Goldline SWG, Hayward Color Logic 2.5 LED Light

  20. Back To Top    #20

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    Quote Originally Posted by iggy

    How long is your swim season in Brisbane, Australia

    Iggy from the cool part of Arizona
    In Brisbane, i'd say middle of October - middle of April.
    But we never close down pools for winter, if you feel like swimming in 50 degree water you are more than welcome to

    Up north near Cairns you can swim all year round i'd say.

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