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Thread: Liquidator flows

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    mikesla's Avatar
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    Liquidator flows

    Anyone know what the units are on the supplied flowmeter? Does a setting of "3" equal something like 3 cc/s? Or maybe 3 cubic inches/s? Mine is so erratic i'm thinking of replacing both the flow meter and the control valve with something a bit more "regular" and need some sizing info. I guess I can breakdown and just pull the inlet tube and stick it in a quart of water and see how long it takes...
    21500 gal IG, vinyl, 850 gal spillway spa, shared filter/heat system, 2 HP hayward max-flo filter pump, 3/4 HP polaris booster, polaris 3900 cleaner, hayward sand filter 300#, Jandy aqualink RS8 controls, 8 gal. liquidator

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    JasonLion's Avatar
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    Re: Liquidator flows

    As far as I know, it is not calibrated to any specific unit and it isn't linear (3 isn't three times the flow of 1).
    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

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    Guest

    Re: Liquidator flows

    I don't even have mine on my LQ anymore, since it really did not do much other than give a quick visual. I tend to check my FC every day (or every other day, on occasion), so the ball doesn't mean much to me.

    I like to keep my FC at 7, and I crack my flow valve about half way to achieve that. Once you get it pretty close the flow meter (IMHO) doesn't have much value!

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    Mod Squad Bama Rambler's Avatar
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    Re: Liquidator flows

    The flow meter is actually supposed to be cc/min but the label is just stuck on so it's not very accurate. It's more of a guesstimation (is that a word???).

    I tested mine is how I came up with that number. Also, CCM is a standard low flow rotameter scale.

    Please let me know if you find one that doesn't cost an arm and a leg that reads that low.

    I put a Hayward needle valve on mine to adjust the flow and would highly recommend it over the quarter turn valve. I got mine at Drillspot, they had the best price.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Liquidator flows

    what simicrintz said..... works good, I kept mine at approx 1/4 with 12.5%
    21000 Gallons I/G,,Vinyl,, 1.5 H.P. Hayward Pump,, Hayward Sand Filter S244T.. Liquidator.

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    Re: Liquidator flows

    Quote Originally Posted by Bama Rambler
    The flow meter is actually supposed to be cc/min but the label is just stuck on so it's not very accurate. It's more of a guesstimation (is that a word???).

    I tested mine is how I came up with that number. Also, CCM is a standard low flow rotameter scale.

    Please let me know if you find one that doesn't cost an arm and a leg that reads that low.

    I put a Hayward needle valve on mine to adjust the flow and would highly recommend it over the quarter turn valve. I got mine at Drillspot, they had the best price.
    Dave, what did you do to measure the volume of the flow? Put the suction in a measured volume of water and compare after x mins?

    Also does anyone know what the concentration of the CL is in the output? I tried measuring a sample but it turned clear as soon as I turned on the quick stir...I tried adding more powder but I stopped adding drops at what would be 30 ppm...I'm thinking I should have diluted the sample?
    15,600 Gallon, 16' x 32' In-Ground Vinyl Pool
    Pentair VS 3050 pump, Quad DE 60 filter and SunTouch controller
    8 gallon Liquidator, Aquatherm EcoSun Solar Panels, 2 wheel ThePoolCleaner

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    Mod Squad Bama Rambler's Avatar
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    Re: Liquidator flows

    I measured it in a round about way because the flow meter isn't really a cc/min flowmeter. The best thing to do is not worry about what the values are but use the numbers to go from where you are to where you need to be. And they're good when restarting the system because you know where you were so you can go back there.

    I've never measured the concentration out of the LQ so I don't know what the exact number is. As long as the FC was correct in the pool that's all I needed to know.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Liquidator flows

    It's going to be a very high FC. I have no idea of the flow rate through The Liquidator, but say it was 100 times lower than the main GPM rate in the circulation system and let's assume that one has the pump on (and therefore The Liquidator adding chlorine) for one turnover per day. If we assume a chlorine demand of 2 ppm FC, then this means the output from the liquidator would have to be 200 ppm FC. If the flow rate were 1000 times lower than the main circulation GPM, then the FC would be 2000 ppm.

    Note that when you increase the flow rate through The Liquidator, the FC out of The Liquidator drops somewhat, but not as much as the flow rate changes so the net effect is that a higher flow rate through The Liquidator adds more chlorine to the pool.
    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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