Septic and well - advice? Words of warning?

[NA Jones]

Considering renting out a property thats on septic/well.  Current owners have been diligent in caring for the septic - regular tank cleaning, liquid detergents only, no oils down the drain, no feminine hygiene products being flushed etc etc etc.  

What has been your experience regarding a rental properties septic?  Will the septic system wear and fail faster under the hands of a renter than a homeowner?  Anything I can put in the lease to withhold the security deposit towards the septic repairs if certain care and precautions aren't met?