I just filled my new pool and I am getting confused about pool mode vs spillover mode. In my pool mode there is no return to the spa. Skimmers drains and returns are open in the pool and drains and returns closed in the spa. The only way to circulate the spa with the pool is spillover where it drains from the pool and then returns to the spa (skimmers and returns closed in the pool). Is this a normal set up? Also I just added chlorine to my pool for the first time to get the ppm to 3 (in pool mode). When should I then circulate this to the spa? I just added 3 gallons of chlorine to the pool (33k gallon pool).