Then you have a water-resistant surface that will not swell up and look damaged when people put cleaners there or have the inevitable drain leaks.

We questioned the black coming out of the cracks and opposite wall with black draining out of cable jack?

We came back from very long trip and then found my apartmnet was flooded , they drilled holes in ceilings to drain apartment above us , holes everywhere on our ceilings, made our rooms flooded, furniture damage kitchen appliance, filthy water everywhere mattresses, clothing in stores wet,  please tell me what to do next.....very rude management, big machined dehumidifiers everhwhere, we were shocked , above all they didnt even informed us befor throwing my rugs in my patiopm couches in kitnchen....broke my couch, t.v stand , cbale wires all aound......and when we got into office, they say , hey why you guys are here is everything o.k....Manager didnt know anything.....o.m.g.....we have 3 kids......such a terrible incident, everything is ruined, water got into everything...they are not letting us get out of lease, thinking to get a lawyer, how to get claim done...should i sui them...please advice...thankyou

Lots of labor..So it worked for me (the other property managers in town told me Plan B was to get all tenants a  motel for 2 days in dead of winter; drain all pipes and winterize fourplex; then open the windows on the coldest days and freeze them all.

I'd drain it and put in new water.  

Sometimes no matter what you do, pipes will freeze, but many policies do include a stipulation that you do your best to maintain heat or drain the system completely in order to have the water damage from a burst pipe covered.

Lets live our lives to the best standards possible (which is why most are in the RE game regardless.) and we know that doesn't always include money.I was homeless for a spell (messed up as a renter, thought everything was down the drain, made bad decisions when things weren't as bad as they seemed.)

I would expect this type of detail if I was building a multi million dollar project were real money was on the line... the cost of enforcing all those provision etc your deals if they are under say 200k just not worth all the brain drain cost up front etc.. people are either going to execute or they are not. 

For STR has anyone removed garbage disposals so renters stop breaking them and putting too much waste down the drain??

Tens of thousands of dollars would be poured down the drain into a rental, I would have to go back to working 60+ hours a week and thus toss away any hope of gaining independence.