Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Another grounding question

  1. Back To Top    #1

    Join Date
    Sep 2007
    Location
    Toronto
    Posts
    106

    Another grounding question

    When the pool water goes through the pump, is the water itself grounded to the pump's ground connection?
    OH TWINS
    San Juan 8500 gal Fiberglass Pool, Sta-Rite Max-E 1 HP pump, Star-Rite System 3 Cartridge Filter 300 sq. ft,
    Sta-Rite Max-E 200,000 BTU gas heater, Aqua Logic SWG with P-4 panel. Goldline wireless remote control,
    3 Jandy Neverlube Valves with Goldline motorized control, iRobot Verro 500 pool cleaner
    5 Poolstar 1000 LED Lights, LED strip light at waterfall, Prozone Ozonator PZ7 with degasser column,
    Jandy Auto Waterfill, Aquamatic motorized pool cover, Poolbuster Max CC handheld vacuum.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    Usually. The water is electrically connected to the bonding lug on the pump. Most, but not all, pumps connect the bonding lug to the ground wire.

    Why do you ask? The whole bonding/grounding thing gets kind of complicated. Depending on what you are actually trying to figure out grounding may or may not have anything to do with it.
    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

  3. Back To Top    #3

    Join Date
    Sep 2007
    Location
    Toronto
    Posts
    106
    I just want to be on the safe side. Actually I used a multimeter to do some checking today, the pool water is indeed "connected" to the bonding lug on the pump which is grounded to the main panel.
    OH TWINS
    San Juan 8500 gal Fiberglass Pool, Sta-Rite Max-E 1 HP pump, Star-Rite System 3 Cartridge Filter 300 sq. ft,
    Sta-Rite Max-E 200,000 BTU gas heater, Aqua Logic SWG with P-4 panel. Goldline wireless remote control,
    3 Jandy Neverlube Valves with Goldline motorized control, iRobot Verro 500 pool cleaner
    5 Poolstar 1000 LED Lights, LED strip light at waterfall, Prozone Ozonator PZ7 with degasser column,
    Jandy Auto Waterfill, Aquamatic motorized pool cover, Poolbuster Max CC handheld vacuum.

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    The crucial thing for safety is that the pool be properly bonded. Bonding is different than grounding. Bonding means that all of the metal parts within several feet of the pool are electrically connected. That way any possible current will flow through the wire instead of through you or the water.

    Connecting the bonding system to ground is of debatable value. There isn't actually much point in debating it, because the bonding system is almost always connected to ground anyway (because of the way pumps are designed). Still grounding brings both advantages and disadvantages. Some countries require the bonding system be connected to ground and other countries discourage it.
    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

Posting Permissions

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