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

Thread: Liquidator Losing Momentum With Variable Flow

  1. Back To Top    #1

    Join Date
    Mar 2014
    Location
    Arizona
    Posts
    17

    Liquidator Losing Momentum With Variable Flow

    I have to say, I'm disappointed with my purchase of the Liquidator, but I was hoping to see if I could make improvements.

    What happens is, if I start my variable flow pump at a high setting, say 3000rpm, and then back it down to 1500 rpm, my flow from the Liquidator stays around the 2-3 mark for several hours, but eventually, the ball in the meter is stuck at zero at the end of the cycle.

    If I start out my pump at the regular setting, say 1500rpm, the flow meter stays at zero. I believe it is transferring fluid, but at a very slow pace.

    Any idea what's causing this? I have the valve opened all the way and I also have the 3/8" upgraded line. My filter is clean and flushed regularly.

    More and more, I'm regretting not going with a Salt water system, I find myself having to do even more work with the Liquidator.

    My thoughts are the Liquidator is meant for single speed pumps. Already I have had to increase my RPMs substantially just to get this thing to work just a little bit.

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Liquidator Losing Momentum With Variable Flow

    The liquidator works off pressure differences. So they are generally calibrated to a single pump speed and thus do not work well with variable speed pumps running at multiple speeds. Additionally if your skimmer fills up and/or the filter gets dirty, the pump will pull higher suction and again change the rate of bleach addition.

    I am not sure what to suggest to improve your performance, though.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  3. Back To Top    #3

    Join Date
    Mar 2014
    Location
    Arizona
    Posts
    17

    Re: Liquidator Losing Momentum With Variable Flow

    Well the only reason I'm running my pump at different speeds is an attempt to get the Liquidator flowing into my pool.

    Before I just had it set at around 1100rpm for around 15 hours a day. I found it just wasn't flowing enough chlorine, so i begin the cycle at 3000rpm for just a few minutes because it seems to get the Liquidator "flowing" chlorine into the pool.

    If I just run a cycle of one low speed, I'm getting very little to no chlorine.

    One solution might be to just have it come on a high speed a few more times during the entire cycle, just enough to get it going.

  4. Back To Top    #4
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,333

    Re: Liquidator Losing Momentum With Variable Flow

    That's the major drawback of the LQ. If the suction head varies much for any reason it affects the flow of chlorinated liquid to the pool. If you want to run your pump efficiently, you probably want to consider either an injection pump or an SWCG. Even an SWCG may have problems working at very low flows, but will work at a lot lower flow than the LQ will.

    Even on high flow, low head systems (i.e. aboveground pools with short plumbing and no valves) the LQ has a problem working.

    What size is your pool?
    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

  5. Back To Top    #5

    Join Date
    Mar 2014
    Location
    Arizona
    Posts
    17

    Re: Liquidator Losing Momentum With Variable Flow

    It around 17,000 gallons. It an inground pool and the pumping station is slightly lower than the pool.

    Thanks for the suggestions, I'm probably leaning towards an SWGG system, my concern is I have natural limestone as a deck. Are the issues with this overblown?

  6. Back To Top    #6
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Liquidator Losing Momentum With Variable Flow

    Please add your location (City, State or City, Country) to your profile and pool details to your signature as described HERE as it will help us help you in the future.

    Some people report problems with natural stone and others do not. Frequent sealing could help prevent problems.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  7. Back To Top    #7

    Join Date
    Mar 2014
    Location
    Arizona
    Posts
    17

    Re: Liquidator Losing Momentum With Variable Flow

    Quote Originally Posted by jblizzle View Post
    Please add your location (City, State or City, Country) to your profile and pool details to your signature as described HERE as it will help us help you in the future.

    Some people report problems with natural stone and others do not. Frequent sealing could help prevent problems.
    Doesn't it say Arizona in the Location field?

  8. Back To Top    #8
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Liquidator Losing Momentum With Variable Flow

    Flagstaff/Show Low and Phoenix/Tucson are a good bit different climates .... And your signature is still blank.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  9. Back To Top    #9

    Join Date
    Aug 2014
    Location
    concord, ca
    Posts
    1

    Re: Liquidator Losing Momentum With Variable Flow

    i just installed my liquidator 2 days ago and i have a variable speed pump as well. when my pump kicks on to prime each day (at 2700 rpm) the flow meter is up at the top. when my pump speed decreases to it's normal setting of 1500 rpm, the flow meter reads about 3-3.5. so far i haven't noticed it dropping toward the end of a cycle. i was wondering about this very topic though because if it's not delivering enough chlorine i don't want to have to increase my pump speeds. we'll see!

Posting Permissions

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