Sanitation connection

Sewers

sewage drains

Manhole for sewers

Floating raft for treatment systems

Home drainage connection detail

trench section

channeling under road

urban drainage

french drain

Filter house str water supply

Wastewater treatment compact top view

constructed wetland

Spillway

architecture and structures settler

rectangular manhole

Processing facilities

drain mailbox

standard sewers

Gates takes

Water purification plant