I just ordered a s300 for $799. I think the 300i was $899. Not sure about the others.
I thought I would try the pleated filters tonight. I was pleased with the how easy they were to change out. Our water seemed cleaner on the surface, but as for the walls and floor I am not sure if there is enough of a difference for me to be able to tell.
You just took it to any local pool shop? Or dolphin approved repair shop?Mine did that, took it to the shop and they replaced the motor under warranty and it has worked fine ever since. They said it is the first S-series warranty repair they've had to do. I guess you have the second.