I have removed the hot tub disconnect and pulled the 4 wire (6G) back into the basement. This line comes from the main breaker panel on a 2-pole 50A breaker. My plan is to instal a basement sub-panel and feed it using the this former hot tub line. The sub-panel is to have 2x 120V, 15A circuits, to be used for a basement brewery project. From what I read in this forum, it appears a sub-panel is appropriate. I only need two 120V Circuits, and think that each would get their own hot wire from the old line, and share N and G. Planning for the sub-panel breakers to be 15A single pole, with 14Gauge wiring to the respective outlets. Since the sub panel has 15A breakers protecting their lines, and since the wire between the main and the sub-panel are 6 Gauge, is there any need to replace the 2-pole 30A breaker in the main ? And, is the plan okay as stated?