Of course, tenants flush all kinds of crazy things down their toilets and this will clog a septic system just like it will clog a sewer system.You also have to pump the septic system every so many years.

Make sure you explain how flush toilets work.All kidding aside it will be a extremely high risk investment that experienced investors would avoid like the plague other than the possibility of short term seasonal vacation rental.

It may be the best toilet ever built, and you can flush bowling balls down that toilet. 

Another investor told me about a recent mishap where a tenant tried to flush something down the toilet that should have been buried or cremated.

My properties are outside my immediate area - last month, I had to pay a handyman to replace the flush valve on a leaky toilet - on one property - that was $50.  

Many easy money investors will be flushed which leaves more deals available for me. 

one of them flushed a shampoo bottle down the toilet but they paid for that. honestly besides girlfriends/boyfriends sleeping over more than my contract allows, no other big issues.

Clearly this is the tenants fault for flushing so much gravel.

Vet a few contractors, do lunch or coffee with them, let them know what you're looking for... and make sure they're willing to work with investors... you shouldn't be paying the keeping up with the jonses, one and done rates... you will keep them flush with business...so they will need to provide a better rate.Property - once you have your team... go out, find a property that meets your numbers, and pull the trigger!

After paying that much I started doing some research and found a product at a big box home improvement store that you flush down the toilet every 6 months that costs about $15.00.