Hello, excited to learn more about pool maintenance with our new pool and spa. Actually there is still more that needs to be done to it, like the automatic covers and stonemason work on the exterior of the spa. We have Pentair salt system that I can turn stuff on and off with my phone, and a new (today) E70 Dolphin pool cleaning robot - that seems to be getting caught up doing wheelies on the 15" deep ledge in the shallow end of the pool. I am putting more water in tonight hoping 18" might keep it going.