That's an awful lot of failures on such a pool. I'll let those more knowledgeable of your equipment and configuration try to help. I know nothing about booster pump-based pressure cleaners or automatic pool covers. I can tell you your Ozonator is probably a waste of money. If you are subject to lots of thunderstorms you would do better to go to a simple 2 speed pump that can have the speed remotely controlled. The advantage of a VS over a 2speed is, IMHO, not justified by the added cost AND added risk from lightning surges.