They never show those golf balls going 30 feet through a sewer line, not to mention the trap with a wad of tissue. It is a monthly at minimum t to pour that 5 gallon bucket through every drain in my home.

1.6 x 3 flushes to go clean is pretty much 5 gallons.

Do not forget the water saving kitchen faucet that takes forever to fill a pot and will not flush a garbage disposal. I compost almost everything.