Practical exercise
Seven day household water meter log
Pakistan is officially water stressed; per person availability has dropped from 5,000 cubic metres in 1947 to under 900 today. Most households have no idea how many litres they actually use because nobody reads the meter or pump timer. This week you read it daily for seven days, find the biggest leak or waste, fix one thing, and prove the saving in litres. Real numbers, your own house.
Now try it
Seven day household water meter log
Stretch
After fixing one item, do a second week and try a household rule with everyone: one bucket bath per person per day, no exceptions for two weeks. Log the new average. The whole household saving for a week of bucket discipline is usually 1,500 to 3,000 litres for a family of six.
Goes into your portfolio
Your seven row meter log with all readings filled, a description of the one item you fixed (with a before-after photo if it was a tap or cistern), the weekly average comparison, and the litres saved per day calculation.