I am wiring for an in ground pool. I will have three separates circuits with GFCI 20 amp breakers for the pool lighting, the pump, and the convenience outlet. Using THHN/THWN wire all the way from the panel. My question is twofold: 1. Can I run all three circuits in the same conduit run? 2. do I really need separate circuits for the pool lights and the convenience outlet?