Field journal · Sheet 01

What’s hidden inside the walls of your home

Water, gas and sewerage decide whether a home is truly liveable. We take the networks apart before you buy.

Read the breakdowns
Engineering cross-section of a three-storey home with water, gas and sewer lines rising through every floor Gas Water Sewer

Connection Cutaway

Three service lines run from the street mains into every building. Each has one point you can check on site: steady pressure on the water line, a sealed meter where the supply enters, and a sewer pipe laid with a constant fall.

Side view of a house with water, sewer and gas pipes running from the building to the city mains
  • Pressure within range
  • Meter at the inlet
  • Fall of 2 cm per metre

Three Networks — Three Checks

Water

Supply pressure and pipe quality decide whether the upper floors get water all day or only at night.

  • Supply pressure and head
  • Meter at the inlet
  • Pipe material and condition
  • Signs of leaks and damp

Gas

Piped gas is safe only when the shut-off, the meter and the paperwork all match the installation.

  • Inlet shut-off valve
  • Meter and leak detectors
  • Supply agreement
  • Pressure test record

Sewerage

Waste lines work by gravity, so the slope and access points matter more than the pipe brand.

  • Pipe slope
  • Diameters and outlets
  • Inspection chambers
  • Drainage and stormwater

Latest Breakdowns

Copper riser with a branch line, a gate valve and a pressure gauge

Pipeline Corrosion Detection Methods for Industrial Utility Networks

Corrosion in industrial utility pipelines rarely announces itself. It starts quietly — a patch of coating damage, a few microns of wall loss, a pit that deepens month by month — and then one day it becomes a leak, a pressure drop, or an unplanned shutdown that ripples through the entire system. In Indian residential townships and […]

City Network Map

Schematic district map with water and gas trunk lines crossing the city blocks Water intake Gas regulator Pumping station

Where your water comes from

Five steps from the river to the tap in your flat.

  1. River or reservoir intake
  2. Treatment plant
  3. Pumping station and trunk main
  4. Building sump and overhead tank
  5. The tap in your kitchen

Who to Ask

Five bodies that answer for your connections. Knowing who signs what saves weeks of back-and-forth after the sale.

  1. 1Water supply board
  2. 2Gas distribution company
  3. 3Developer
  4. 4Building management agency
  5. 5Local municipal body