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Thread: Legend II pump setting

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    Join Date
    Aug 2010
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    Jacksonville, FL
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    Legend II pump setting

    I am new to pools, mine was completed a couple a weeks ago. I have a Legend II cleaner, I have a VS-3050 pump, I turned the pump on full 3450 rpm with the return value turned on only about 1/5 and the Legend II will not move. I turned the return value off and I can turn the pump down to 2800 rpm and have the Legend II move and the minimum speed. Is this normal? I can never get a straight answer from my PB.
    Soon to be built: ~15,000 gallon in ground pool/spa Gunite with Marbletite Beach series finish, Pentair Intellitouch I7+3, Intellibrite LED lights, Sta Rite Intellipro VS 3050 pump, Star Rite PLM cartridge filter, IC40 SWG, Sta Rite Max E Therm 400K propane gas heater, Automatic water level

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    Mod Squad Bama Rambler's Avatar
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    Re: Legend II pump setting

    It's not surprising that your PB can't answer your question. They usually don't have a lot of experience with cleaners and quite honestly, what's normal for your system might not be for another.

    2800 rpm sounds about right but the most important thing it that the wheels turn between 25 and 32 rpm. Whatever pump speed that takes is what you should run.
    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: Legend II pump setting

    Quote Originally Posted by Bama Rambler
    It's not surprising that your PB can't answer your question. They usually don't have a lot of experience with cleaners and quite honestly, what's normal for your system might not be for another.

    2800 rpm sounds about right but the most important thing it that the wheels turn between 25 and 32 rpm. Whatever pump speed that takes is what you should run.
    Thanks, Yes at 2800 RPM the wheels turn 25 RPM. So it is normal that you have to turn off the pool returns to get enough pressure for the cleaner?

    I need to get a couple more value actuators. to automate my system. I have an intellitouch 7+3 and the PB did not include actuators for the cleaner, bubbles or pool return. Who would have though that when you get a full automation system that they don't put actuators on all the lines
    Soon to be built: ~15,000 gallon in ground pool/spa Gunite with Marbletite Beach series finish, Pentair Intellitouch I7+3, Intellibrite LED lights, Sta Rite Intellipro VS 3050 pump, Star Rite PLM cartridge filter, IC40 SWG, Sta Rite Max E Therm 400K propane gas heater, Automatic water level

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    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
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    12,082

    Re: Legend II pump setting

    In my pool with The Pool Cleaner that only needs 15 GPM to operate, I found that I needed to operate it on a dedicated line and not have any returns operating. There simply is too much resistance from the cleaner relative to regular returns and it needs enough pressure to operate. Some people using fixed-speed pumps have them connected to a return, but that's at full speed. On my dedicated line, my pool cleaner operates at 15 GPM, 1955 RPM, 425 Watts with the wheels turning at around 14 RPM. If I remove The Pool Cleaner, then the dedicated line on its own at 15 GPM has the IntelliFlo VF pump run at 1370 RPM, 200 Watts. The difference in pressure in these two scenarios is around 6.5 PSI so that's the resistance of the cleaner.
    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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