stray voltage?

I don't know much of anything about it. This is why i worry. I do know that for some reason my pH probe is going nuts in my sump but if i take a cup of water and stick the probe in it, It has no problems. The only difference i can think of is the voltage.

 

I fully disagree windy and I thought your argument was already debunked in a previous thread. Your right, fish getting shocked all day is not harmful at all. Lol. Saying probes are a safe hazard is such a blanket statement.

 

Voltage is harmful bostwick and that's why we're on here to learn. Some people just like to post on forums without any helpful knowledge buddy.

 

http://angel-strike.com/aquarium/GroundingProbes.html

 

Could the pH probe be acting as a ground probe creating a current and that is why i could feel the shock?

 

If you look at a GFCI, it is advertised as a safety device because that is what it was designed for. Look at the advertising on a ground probe. Not one word about safety as their attorneys would not permit them to expose themselves to such liability, by making false claims.

If fish are getting shocked then there must be current. If voltage alone would shock you then, just passing by a wire with voltage would be harmful. Its not that simple. And if you have current flow you have an active short, not stray voltage. Voltage can be seen as pressure in a pipe. But flow is what kills. No flow no problem.

 

Pretty good article. I wonder if anybody here will read it?

 

I read it. How do i know if i have current. It doesn't shock me today putting my finger in the water. The pH probe was giving me low readings which i have been told could be from the probe grounding the tank. Any thoughts here?

 

"Voltage is harmful" is either an attempt to fool, or a complete misunderstanding of the subject.

 

You will know if you have current in your tank when the GFCI safety device trips. That is why you should have one. They do not require either a ground or a grounding probe to work.

Personally, I would ignore the voltage issue and look to fix your PH probe. Mine is in the sump and has problems with bubbles. Also if it gets dirty it reads low. APEX also warns of interference from other near-by probes and by running the same probe wires in a parallel fashion back to the meter. You would think APEX would require a ground probe if it was necessary to make their probes work.

Does it read incorrectly when in any part of your tank or just in the sump? What is the brand name of the probe? They need replacement from time to time as well.