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Thread: Rail causes slight tingling shock

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    Rail causes slight tingling shock

    I recently converted to salt and once we started swimming this year, we noticed a slight tingling shock when exiting the pool (touching the rail and water at the same time). There is almost no DC voltage at all, but there is 1.1 AC Volts. I turned the power off at the panel in the house and the panel at the pool then unhooked all of my bonding lugs and the voltage is still there so I am not worried that it is due to electrical line leakage, but it is still a nuisance. Any help would be great.
    30 k gal in ground vinyl, Haward sand filter model s244t, 1.5 hp, Polaris Booster Pump
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    Mod Squad zea3's Avatar
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    Re: Rail causes slight tingling shock

    Hi, you may have a serious problem with the bonding on your pool. Have you reported the problem to your electric service provider? The problem could be on their end or on your end.
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    Re: Rail causes slight tingling shock

    I am not quite sure how it could be related to the power company since I disconnected all power from the panel and bonding and still see the voltage. Can you help me understand what you suspect?


    Quote Originally Posted by zea3 View Post
    Hi, you may have a serious problem with the bonding on your pool. Have you reported the problem to your electric service provider? The problem could be on their end or on your end.
    30 k gal in ground vinyl, Haward sand filter model s244t, 1.5 hp, Polaris Booster Pump
    Pump Model PB-4 with 3/4 hp motor, heat pump heater, Astral chlorinator

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    Re: Rail causes slight tingling shock

    They could very well have a fault in the service drop at the pole to your panel or a pole at your neighbors, etc. I will not try to pretend to understand all the possibilities but they can be the cause of stray voltage and they usually inspect things for free. It is a good starting point.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
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    Mod Squad tim5055's Avatar
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    Re: Rail causes slight tingling shock

    You,actually have two problems-

    - Stray voltage that may come for a distance (bad power company transformer, ect)

    - defect in the bonding system of your pool

    This is the exact problem bonding is designed to eliminate. When the bonding system works, all metal objects in/around the pool and the pool water itself are tied together electrically. They balance electrically and you can not should not have voltage flow between two parts. In your case either the water or handrail do not seem to,be properly connected to the bonding grid.

    You should be making to calls, one to the power company to identify the stray voltage and fix it and an electrician who understands pool bonding to figure out what is wrong with your bond.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: Rail causes slight tingling shock

    Thanks. I suspect that my rail has poor bonding. I do have continuity to the bonding circuit, BUT it may be intermittent since the rail is stuck in place due to the previous owner not taking it out regularly.


    Quote Originally Posted by tim5055 View Post
    You,actually have two problems-

    - Stray voltage that may come for a distance (bad power company transformer, ect)

    - defect in the bonding system of your pool

    This is the exact problem bonding is designed to eliminate. When the bonding system works, all metal objects in/around the pool and the pool water itself are tied together electrically. They balance electrically and you can not should not have voltage flow between two parts. In your case either the water or handrail do not seem to,be properly connected to the bonding grid.

    You should be making to calls, one to the power company to identify the stray voltage and fix it and an electrician who understands pool bonding to figure out what is wrong with your bond.
    30 k gal in ground vinyl, Haward sand filter model s244t, 1.5 hp, Polaris Booster Pump
    Pump Model PB-4 with 3/4 hp motor, heat pump heater, Astral chlorinator

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    Re: Rail causes slight tingling shock

    What type of water bond do you have?
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    Re: Rail causes slight tingling shock

    Salt. I suspect the issue was there before converting and the salt made the water more conductive.

    Quote Originally Posted by danpik View Post
    What type of water bond do you have?
    30 k gal in ground vinyl, Haward sand filter model s244t, 1.5 hp, Polaris Booster Pump
    Pump Model PB-4 with 3/4 hp motor, heat pump heater, Astral chlorinator

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    Re: Rail causes slight tingling shock

    You may be correct but the difference in conductivity between a salt pool and plain fresh water is not that great.

    You or your electrician needs to conduct this test: Swimming Pool Equipotential Bonding [Part 3 of 3, Testing], (28min:39sec) - YouTube

    As Tim points out you have two problems: Bad bonding and stray voltage.

    The most important things are the water bond, the deck bond and the railings. If there is no bonding between the three then persons entering and exiting the pool will feel it and may be injured.

    I am guessing that you don't have children using your pool. They usually feel electrical shock at lower levels because they do not have the mass of adults.

    Anyway you need to get the voltage source checked out by your power company and the incomplete pool bonding checked out by an experienced electrician.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

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    Re: Rail causes slight tingling shock

    Find a good local pool builder and ask them to refer an electrician that can help you.

    Also, contact the power company to see if they can help.

    What is your ground water situation?

    Is there anything near your property (within 1,000 feet) that would use or carry a lot of power or use 3 phase power (like a commercial property)?

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    Re: Rail causes slight tingling shock

    Thanks all. I'll call the power company and reach out some local resources for an eletrician.
    30 k gal in ground vinyl, Haward sand filter model s244t, 1.5 hp, Polaris Booster Pump
    Pump Model PB-4 with 3/4 hp motor, heat pump heater, Astral chlorinator

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    Re: Rail causes slight tingling shock

    Quote Originally Posted by joefishengineer View Post
    Thanks. I suspect that my rail has poor bonding. I do have continuity to the bonding circuit, BUT it may be intermittent since the rail is stuck in place due to the previous owner not taking it out regularly.
    where is this continuity referenced to. Is it the bonding grid, or the water? Clamp onto the rail and check for voltage to the water. I suspect you do not have a good bond with your water.
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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