Swap Santos for viton

Previous owners have all the flojets with Santos parts, the tire cleaner pump is lasting me like 2 months and I have to clean it out for it not to stick, driving me bonkers. Currently I've got one on spare to quick swap but its nuts so often.

Can I swap out the innards for viton without a whole new pump?

Also where do I find viton innards, kleenrite I'm not finding the diaphragm and check valves in viton, only santos?

Can I also put it on quarterly checklist to flush with water from a bucket to keep clean longer or wont it help any?

There are better options than using a Flo-Jet pump. Replace the Flo-Jet pump with a Procon Pump controlled by a IDX AT-MX8 controller or build a relay bank to control the motor. We have one Flo-Jet left and on the Foam brush system.

Flo-jets aren't really worth rebuilding, if you want viton, just buy new viton ones. Flojets need DRY air and they work flawlessly for a long time.

I've used Santoprene with some pretty corrosive chemistry and got more than that. Are you sure it's not something else like excessive moisture in the air?