De icer question

[paulga]

Hi,
I want to install a Kasco bubbler 2400D for the winter. The marina allows me to plug in from an available pedestal. I plan to use this pigtail adapter to connect the bubbler.

There are two questions. First, the plug end says L5-20P, I think the pedestal socket is L5-30P, is there any concern that this adapter working in a 30P socket?

Second, the bubbler requires a GFCI protected circuit. This pigtail adapter does not have GFCI protection. I plan to add a regular outdoor timer, like the GE extreme weather outdoor 24 hour timer, but the specs of such mechanical timers do not include GFCI. How to meet the GFCI requirement?

 

[Comodave]

Get a waterproof electrical box and mount a 20 amp GFI in it. Run a cable from the outlet on the adapter to the electrical box. Plug the bubbler into the electrical box.

 

[paulga]

Get a waterproof electrical box and mount a 20 amp GFI in it. Run a cable from the outlet on the adapter to the electrical box. Plug the bubbler into the electrical box.

There is assembled box for sale. This satisfies the GFCI requirement. But It will trip at 20amp, the pedestal circuit breaker trips at 30amp. The bubbler does not have a built in fuse, could it be already damaged at 20amp power surge before the GFCI activated?