Hi WSP - I have not thought to much on the salt dispenser yet but i was thinking about a hopper with a 1" SS auger controlled by a dc or stepper motor.
Im about a week away from getting the system wet so, im hoping i will be able to keep the system running while i do the WC. It will all depend how much i can drain before i get a vortex created by the 2" circ pump inlet. If i cant get a good amount i will experiment with either shutting the circ pump off during the change or running the WC more frequent. Either way wont be a problem.
VR