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Thread: Filter Pump run time

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    Filter Pump run time

    Hey all,

    New pool and just trying to figure out how long & fast to have the filter pump run. Ideally would like to run it on the lowest RPM. Does anybody have any direction on where I could figure this stuff out?


    23,000 gal
    Jandy VS-FloPro pump (600-3450rpm)
    Jandy CV Cartridge filter 460sq/ft.
    Jandy LXi NG heater
    2inch flex pipe through-out
    40-50 ft run from skimmer to pump
    Pump is located 4-5ft above skimmer

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Filter Pump run time

    The absolute, precise, definitive answer is "It depends"

    Your goal should be to pump the equivalent of 23k every 24 hour period for good circulation and, importantly, keep your pool clean. It requires some experimentation and it changes a little as the season progresses.

    What currently works for me (single speed pump) is three 2 hour shifts spread around the 24 hours. I will soon up that to three 3 hours shifts and that may get me through the summer.

    With your VS pump, that can be done differently. I think many of the VS users run 24/7 on the very lowest only to bump it up when vacuuming or they have a special need.

    Other VS folks will be along soon.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Filter Pump run time

    Thanks I look forward to hearing from the VS pump people!

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    In the Industry

    Join Date
    Nov 2011

    Re: Filter Pump run time

    You will have to set your vs to trip the safety switches on your heater. I have a pentair vs set to pump 34 gals/ min to make the heater sense enough pressure to open and ignite.
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

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    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Filter Pump run time

    For most VS pumps the highest efficiency is reached between 800-1000 RPM depending on the plumbing. I would set it to 1000 RPM which is around 25 GPM for 2" plumbing and about a 15 hour turnover.
    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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    BobinBaltimore's Avatar
    Join Date
    Dec 2009
    Northeast of Baltimore, MD

    Re: Filter Pump run time

    I have a Pentair VS pump and agree that you need to experiment to get it right. For my part, the lion's share of my runtime is spent in the 1100RPM range (I run it for 4 hours in the late-morning and 4 hours in the mid-to-late afternoon). I run it a higher RPMs (2300, if I recall) between 11pm and 4am when electricity is cheaper to give the pool a great cleaning and also maximize the effectiveness of my SWG. By my math, this probably gives me a turnover of about 125 - 150% of pool volume per 24 hours. A bit more than the minimum, but I have a really low tolerance for anything other than sparkling water.
    25' x 37' freeform, 22,000 gallon saltwater, 3'6" to 6'6" deep, including baja shelf and benches, 120 ft EP Henry retaining wall
    Pentair equipment (CC420 cartridge filter, VS-3050 variable speed pump, IC 60 salt cell, EasyTouch), 200 sq ft pool house
    View our Pool Build - View our Pool House Build

  7. Back To Top    #7
    MattM's Avatar
    Join Date
    Jul 2011
    San Diego, CA

    Re: Filter Pump run time

    Find out the optimal flow rate for all your equipment (heaters, swg, etc). Also, take a look at the water inside your skimmer and see what the lowest rpm that provides a reasonable suction. You may have to drop something small in the pool before the skimer and make sure that whatever speed you settle on is good enough to pull it in without creating too strong of a flow.
    24K gallon inground gunite/pebble sheen pool, 34'x16' 4-7.5ft deep, 750sq ft solar, pentair ultratemp, intelliflow vs+, ic60, intellichem w/ acid pump, quad de 100, intellibright 5g, intellitouch i5-3s with Screenlogic2, 3" primary piping - 2.5" at equip pad, auto switched deep heating and main returns, automatic safety cover w/ electronic lock and embedded recessed undertrack, sealed stamped concrete deck, dolphin deluxe 5, started up December 2011.

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