background
black
blue
bottle
bundle
color
connection
control
copy
curved
dam
decay
dilapidated
dirty
drink
duct
equipment
faucet
filthy
fluid
industrial
industry
iron
joint
junction
leak
link
metal
old
permeate
pipeline
plumbing
rubber
rust
rusty
seep
sewage
shabby
shiny
sluice
space
steel
tap
text
tie
tube
unsanitary
urban
valve
water