She set up a washing machine to the pipes in the kitchen.

Back then, before laundromats, before wash and wear clothes, people drop off their laundry down the street on their way home from work, not drive a long distance to drop it off. 

He lives in an expensive part of Texas so investing locally for him is not much of an option which is why he is interest in my Cleveland market.So part of the deal with was he would agree to lend me money if I agreed to get him a house in my Cleveland market on the BRRRR strategy.

That 4% should work out to be the effective inflation rate, which means your debt is "washed" by inflation. 

Any idea on cost to build that dump station and/or washing area?

My first property was a small 90k single family in a podunk country town.Had good ole boy John as my first renter who set his payment on auto-payment and would pressure wash the house bc he liked to.

Although your paying interest, youre still earning interest on your cash which is pretty much a wash.

Obviously, the shower water got all over the tenants bed and the tenant had to wash the sheets as well as anything else that got water damage.

In a little bit over a year, I’ve accumulated about 20 units and I even acquired 2 car washes from a seller as part of a deal.

That doesn't mean ill go into a bank with jeans that haven't been washed in a week.