Abandon plastic plumbing. 

If it's grease I've had good luck using either the drain cleaner someone else listed earlier or dishwasher detergent with hot water, let set overnight- it's the strongest detergent you can buy, but won't damage plastic pipes (can work on slow toilets as well, since it breaks down, er "food").

PS: always go with toggle bolts instead of plastic expansion anchors, trust me I am experienced now :)Below are pictures of my proud work hahahaha

Cast iron whole home repipe in older homes or kitec plastic/zinc whole home repipe in newer homes.

I think the lid switch was the only actual piece of plastic on the washer.  

Have seen newspaper, wrapping paper, cardboard, black plastic garbage bags, towels etc. 

And then use a plastic easy to remove cover to cover up the pipes, and then lay your floating floor on top of that?

It’s a plastic box inside a cardboard box .

I got 96 rolls of tp, 2000 plastic forks and 1000 styro plates at a scholarship auction for about $40. 

It is only about 40 minutes to Disney, but most go to Mount Dora for the old Florida enjoyment away from blatant tourism of the plastic mouse ears.