I have a 20x40 inground vinyl pool. Pool installer was very experienced, put in about 8 years ago. The pool was bonded, I remember seeing the green wire around it before concrete and concrete rebar was wired together as well. He showed me some ohms tests showing ground to pump bolt was intact.
On one side of the pool, I get a stray current of about 1 volt from pool water to patio deck, so if you have a cut in your hand, you will feel a little sensation. However when it rains and the ground is wet, the stray voltage disappears. My pool installer said he had a similar situation caused by a bad transformer that the utility company had to replace. My house is at the end of the street, I had my electric company cut off the transformer to my house and it didn't change the stray voltage. Again, my nearest neighbor is 200 feet from my house, the utilities deadend at my house, I live on 7 acres with no other houses/utilities around me. When they cut off the power to the whole neighborhood it stopped the stray voltage. They then put in a ground neutral transformer where they don't ground in my yard. Still didn't eliminate the stray voltage.
However, after all of this, when I disconnect the Cable TV line coming down from the pole, the stray voltage ends. So, our guess when they shut the power off to the neighborhood, it shut off the cable TV's boxes/boosters and the stray voltage. We've ran new CATV line, and it is about 75 ft from the area of stray voltage around the pool, but the stray voltage remains. My local CATV repair folks can't figure it out either, they thought may be a bad modem pushing electric out into the yard somehow. Unplugged it, but had no effect.
Anyway, does anybody have any suggestions on what to test/look for or cure this problem. One basic question is, if my pool is properly bonded, what is the max stray volts a properly bonded pool can handle. In other words, if a pool is properly bonded, if you introduce stray voltage of 5 volts to it, will it only dissipate 4 of those volts (may not even make sense, this just off top of my head). Or is there a way to contain the stray voltage from the CATV line- as I said, they ran a new underground wire from the pole to the house, so it should be free from cuts, etc, etc..
So, just to be clear, getting about 1 stray volts on one side of pool, when I unplug the CATV wire running down pole to house, the stray voltage disappears.
On one side of the pool, I get a stray current of about 1 volt from pool water to patio deck, so if you have a cut in your hand, you will feel a little sensation. However when it rains and the ground is wet, the stray voltage disappears. My pool installer said he had a similar situation caused by a bad transformer that the utility company had to replace. My house is at the end of the street, I had my electric company cut off the transformer to my house and it didn't change the stray voltage. Again, my nearest neighbor is 200 feet from my house, the utilities deadend at my house, I live on 7 acres with no other houses/utilities around me. When they cut off the power to the whole neighborhood it stopped the stray voltage. They then put in a ground neutral transformer where they don't ground in my yard. Still didn't eliminate the stray voltage.
However, after all of this, when I disconnect the Cable TV line coming down from the pole, the stray voltage ends. So, our guess when they shut the power off to the neighborhood, it shut off the cable TV's boxes/boosters and the stray voltage. We've ran new CATV line, and it is about 75 ft from the area of stray voltage around the pool, but the stray voltage remains. My local CATV repair folks can't figure it out either, they thought may be a bad modem pushing electric out into the yard somehow. Unplugged it, but had no effect.
Anyway, does anybody have any suggestions on what to test/look for or cure this problem. One basic question is, if my pool is properly bonded, what is the max stray volts a properly bonded pool can handle. In other words, if a pool is properly bonded, if you introduce stray voltage of 5 volts to it, will it only dissipate 4 of those volts (may not even make sense, this just off top of my head). Or is there a way to contain the stray voltage from the CATV line- as I said, they ran a new underground wire from the pole to the house, so it should be free from cuts, etc, etc..
So, just to be clear, getting about 1 stray volts on one side of pool, when I unplug the CATV wire running down pole to house, the stray voltage disappears.
