I've noticed that none of your finished models have venting pipes coming from the roof other than those for the propane stoves. How are you venting the plumbing for gray/black water? Is the venting not necessary on the tiny house, or is the vent somewhere else that isn't readily visible in pictures? Thanks for your help on this!
All of our models do indeed having plumbing vents. I am assuming the pictures you have seen just aren't in the right angle.
What else may I help you with?