:-) In my experience, it's actually pretty hard to damage a septic tank, but I would pump them out every 5 years for a STR.

Not everyone agrees and I get it, but if I don't want the burden of the debt that doesn't generate income, plus I prefer the freedom to be mobile and I can move when I want, if I have a new opportunity, if I hate my job, if I hate my boss, if I hate my neighbors (and I do hate one of my neighbors), if the economy tanks, etc. 

I just saw it on Shark Tank a week or so ago.

@Orion Vogeler - Wouldn't the tenant just fill the tank? 

Shark bites are not permanent solutions...

Any in-ground tanks (active or inactive)2.

I lose X amount of $$ because the market tanked or I just miscalculated but I can afford to risk and I will learn from that and move on. 

The house is on a septic tank system and the house was built in 1991.

Originally posted by @John Leyendecker:@Jay Hinrichs there is water on the street and septic system will have to be put in. not sure in your jurisdiction but septic systems for RV parks out here on the West coast area big deal..reason is RV s have many more chemicals in their on board tanks than a normal use toilet  etc.I spent over 250k on a system for 40 unit RV park we had.. 

. $4000 (we can use one septic tank for 2 units).6.