It requires a tenant flush enough, and willing to do.At signing of 1 year lease first month or a proration to the first, and one month's security deposit.

Now if you have a plumbing defect (say  weak flushing toilet) then I would fix the problem not the effects of it. 

Do they really Flush UP (???)

Life savings flushed in the toilet, families torn apart over finances, embarrassment, losing all trust, etc... 

Time is money and flushes cost 10 cents.

I think sleep flushes beta-amyloid and tau proteins out of your brain.

looks like the toilet got flushed too, i.e. account-closed-turd

Home Depot has the Niagra Stealth with a 0.8 gpf https://www.homedepot.com/p/Niagara-Stealth-2-Piece-0-8-GPF-Ultra-High-Efficiency-Single-Flush-Elongated-Toilet-Featuring-Stealth-Technology-in-White-77000WHAI1-N7714-N7717/205611735Additionally you could swap the shower heads for low flow ones.

Even if you're flushing the toilets fine when inspecting the house, oftentimes the second a piece of toilet paper goes down that line, it hits the break and starts to clog up.

@Wayne Brooks  sitting through my CE on veterans day with about 40 RMLO's and being bored to tears since I do only private stuff ... it was clear that these rules are interpreted many different ways. and each lender and closer has taken different steps.this will all just have to flush out over time.