Installing additional electrical outlet under sink. Cost question + safety concerns
I have an electrical outlet under my sink with 2 receptacles. It is not GFCI. My dishwasher is plugged into 1 spot, and my garbage disposal into the other. We haven't had any issues, but im installing a water purifier and need an additional outlet now. I had an electrician come out and he installed an additional electrical GFCI outlet next to it with 2 additional receptacles. He piggybacked it off the other outlet. The breaker says it's 20 amps. I assume this will be OK? Also, I paid $300 for it (after talking the company down from $650...)