I have an electrical question. I currently have two 110 runs into my pool house. These are split into two 110 GFI receptacles. One has a Intermatic T101? timer. I'm installing a new pump and would like to go 220v to lessen the amperage running across the two 12/2 feeds. I've ordered the T104 timer to covert the timer but I need a GFI in front of it. Its been recommended to put a sub panel in the pool house with the GFI. Ok, so here's my question, the economical approach is to buy a spa panel which is typically 50 or 60 amps with a GFI. I know the breaker won't trip but I already have 20 amp breakers on the main panel feed. Will the GFI work under this config?