On Jun 10, 3:31*pm, DerbyDad03 wrote:
On Jun 10, 2:53*pm, Mikepier wrote:

I had gotten an Intex pool with a filter pump. I ran a UF cable
outside, and I installed a weatherproof outlet, plus I installed it
under my deck stairs so it would be out of the elements. The UF cable
goes into an Intermatic timer in my basement, then to the breaker
panel. There are 3 total GFI devices *on this circuit.

1) the filter pump has a GFI plug on it
2) The outside outlet is a GFI
3) the breaker is GFI ( I have a lot of spare GFI breakers to use)

So far on 2 occasions, the breaker tripped, and this was after it
rained outside. All the connections look good, and the filter pump
looks good. Would multiple GFI devices cause problems, or does the
breaker trip indicate I have a fault somewhere?

OK, I'm confused.

Do you have:

GFCI Breaker ----- GFCI receptacle ----- GFCI receptacle ----- Device

or

GFCI Breaker ----- GFCI receptacle ----- Device
* * * * *|---------------- GFCI receptacle ----- Device

or

GFCI Breaker ----- GFCI receptacle ----- Device
* * * * * * * * * * * * * * * * * * *|---------------- GFCI receptacle
----- Device

I don't know that it matters exactly what he has, but it sounds like
he has a GFCI breaker feeding a GFCI outlet which then has a pool pump
plugged into it which also has it's own GFCI.

In any case, from what I know of how GFCIs operate, I don't see why
having any number of them in series would cause them to trip. And
any one or all of them could trip from a fault anywhere, depending on
slight differences in trip point, speed, etc.

The fact that it trips after rain strongly suggests that water is
getting into something.