Plumbing
Plumbing was a system that regulated the inflow of fresh water and outflow of storm and waste water. One whose profession was plumbing was known as a plumber.

Bolians regarded 21st century Human plumbing with disdain. ()

The quality of a plumbing system was considered a marker of civilization by many people. While observing the Akaali homeworld,  expressed doubt at T'Pol's suggestion that the neutrino emissions planetside were coming from an antimatter reactor by saying that they didn't even have indoor plumbing. ()

In September 2152, Malcolm Reed jokingly said he overestimated Charles Tucker III's engineers' ability of indoor plumbing, after complaining of the catwalk's lack of a shower. ()

In 2285, after messing with the 's transwarp computer, Montgomery Scott remarked on the ease of sabotaging the complicated system, noting, "The more they over-think the plumbing, the easier it is to stop up the drain." ()

See also 
 Bath tub
 Sewer
 Shower
 Sink
 Toilet
 T. Purser Hardware and Plumbing
 Waste extraction system
 Water and solid waste recycling subsystem

External link 
 
Life support technology