This video isn’t the best but you can kind of see all the pipes.
Our tiny house has tons of pipes under the trailer for holding the bathroom and kitchen wastewater and two valves for draining. (The kitchen wastewater is separate from the shower and bathroom sink water.) It can hold about 60 gallons total or more, we can’t remember the math of all the pipes….The house does not produce any blackwater because we use a composting toilet.
and this is just a cute picture of Yuri working on the pipes.
https://aluminumtinyhouse.wordpress.com/2013/11/12/under-trailer-water-tank/
The Nautilus 
Ha when are you going to text me some pics
Or a video of your home completed
Hope all is well and hope to c you soon buddy
No video but some audio. Is there a YouTube site?
Mm, that is strange you arent seeing the video. It appears on my screen. Maybe try loading it again. if not i can try to reload it.
The waste water “tank” is ingenious. I’m thinking about doing something like this on the tiny house I’m going to build. Would you be willing to share your plans for the system?