I am in the middle of a kitchen remodel and I moved the dishwasher and garbage disposal. I have yet to rerun the dedicated line under the sink, but will be done within the week, so it's currently on a circuit with my kitchen and living room lights. All are either LED or fluorescent so very low wattage. Issue is when my dishwasher motor kicks on the lights dim for a second and then get bright again. I know this is from a voltage drop usually due to a large load. Is this OK and normal? Trying to decide if I can use dishwasher this week or have to wait until I run the dedicated 20amp circuit. My biggest worry is this happening on a 20amp breaker with 14ga Romex. In process of changing breakers to 15 amps that are on 14ga Romex. House built in 75 and it looks like it was built with 14ga on 20amp breakers.