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Thread: Timer recommendation

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    TexasHeatWave's Avatar
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    Timer recommendation

    Can any of yall recommend a good timer for a Pentair 1 1/2hp pump/filter? The timer that I recently bought just isn't going to cut it so unfortunately I am going to have to shop around for a new one.
    27'x52" Yorkshire Metal Frame Pool (19,324 gallons). Pentair Dynamo 1.5hp pump/22" Sand Dollar Filter (250lbs).

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    mas985's Avatar
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    Re: Timer recommendation

    Intermatic T104 will turn on and off the pump.

    Intermatic T106 will change speeds if you need that too.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    chayne's Avatar
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    Re: Timer recommendation

    i just have an intermatic t101. with 3 different settings so that it turns on and off at different times of the day.
    Charles
    Coleman 16'x48"
    Intex 2100 GPH pump & Sand filter, Intex Robot Vacuum
    Hayward Wide Mouth Skimmer
    TF-100 Test Kit Magnetic Speed Stirer

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    Chasmengr's Avatar
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    Re: Timer recommendation

    I use an Intermatic GM40AV, to cycle my Pentair 1-1/2 HP, 2-speed pump on low speed. I occasionally use high speed by just switching at the pump. Great timer, but very tiny non-finger-friendly controls; I use a plastic pointer to move trippers and on/off/auto switch.

    To automatically time operation at both speeds, both an on-off control and a speed-switch control are required. Wiring the T106 to change speeds requires rewiring the motor's power cord.

    Note: the GM40AV is rated for 1HP, 16.0FLA at 120V; my pump nameplate says 16.6FLA, so I put the circuit on a 15A breaker to protect the timer just in case increasing filter-loss wants the pump to draw its full amperage.

    I really like that the GM40AV has captive trippers.
    Chas & Cheryl (first-time, second-year pool owners)
    Radiant Metric Oval AGP 16'x32'x52"; Pentair: Clean&Clear 150 Cartridge, OptiFlo 1.5 Hp 2-spd, and 320C Feeder (all mounted below water level); Taylor K-2006 & SpeedStir; Maytronics Dolphin E10 (aka Einstein)
    installation pics (2015-2016)

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    TexasHeatWave's Avatar
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    Re: Timer recommendation

    Thanks y'all for the recommendations. Can any of these be plugged into or are the all hard wired?

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    chayne's Avatar
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    Re: Timer recommendation

    I know the t101 has to be hard wired.

    Charles
    Coleman 16'x48"
    Intex 2100 GPH pump & Sand filter, Intex Robot Vacuum
    Hayward Wide Mouth Skimmer
    TF-100 Test Kit Magnetic Speed Stirer

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    Chasmengr's Avatar
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    Re: Timer recommendation

    GM40AV must be hardwired. Before the GM40AV, I burned out a Woods plugin style in about two weeks.
    Chas & Cheryl (first-time, second-year pool owners)
    Radiant Metric Oval AGP 16'x32'x52"; Pentair: Clean&Clear 150 Cartridge, OptiFlo 1.5 Hp 2-spd, and 320C Feeder (all mounted below water level); Taylor K-2006 & SpeedStir; Maytronics Dolphin E10 (aka Einstein)
    installation pics (2015-2016)

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