electrical current.. how much is to much

[glarior]

One thing I hate about this hobby is getting shocked when something shorts out. Today, my heater shorted out and was putting ~70-80 volts in the tank. How bad is that? I unplugged the heater and it appears I average about 4-5 volts in the sump and tank. I have 110g reef setup. I have not isolated where the 4-5 volts is coming from.
Should I worry about 4-5 volts? I tested the water with my volt meter

[jrsatx20]

stick ur hand in the water and have someone uplug equipment one by one to find stray voltage.













j/k do u have koralia powerheads

[kkiel02]

I believe this is how they make chlorine. Shooting current through saltwater.

I would find it if I was you.

[glarior]

Ya, I found it. I was shocked before I pulled the volt meter out lol. It was the heater. The 4-5v I can't feel with my hand.

[alton]

It is not voltage but current that shocks you, plug items into to a GFCI to test. A good rule is to run all items on a GFCI receptacle for protection