Other than cleaning it and changing the filter, what type of preventive maintenance/rehab should I be doing on my seven year old Tiger River spa? Thx.

Wait until it quits.... Then replace parts as necessary. I get these calls all the time... come check out my spa and give it the full tune up... hunh? Tune up? What's that? Hmm, I could start a new industry.... Where I'm at in my mind a tune up for a single pump spa would be about $390, which would include... new wet end, new heater element, new filter. Two pump spa with circ pump would be about $700... two wet ends, new circ pump, heater element (generic only)... Best option? Wait until something breaks. Then fix it as needed. Yeah I know, that's a nothing answer.... people hate it. But they love not paying for a tune up though! " title="Wink" />