How Long Does a 19L Water Bottle Last? A Guide for Families of 2 and 5
How long one 19L bottle lasts for a household of 2 or 5 in Karachi: illustrative estimates, what changes them and how to choose a weekly or monthly plan.
Delivered 19L water or a home RO filter: which makes sense?
Short answer
Neither option wins every time. A home RO filter suits a household with steady water supply that is happy to maintain equipment. Delivered 19L water suits people who want no equipment, no servicing and a predictable monthly bill. Work out both costs over a year before you decide.
How the two compare
| Delivered 19L water | Home RO filter | |
|---|---|---|
| Upfront cost | Refundable deposit, plus a dispenser if you do not have one | Purchase and installation of the unit |
| Running cost | Bottles at your plan rate | Filter and membrane replacement, electricity, servicing |
| Upkeep | None on your side apart from keeping the dispenser clean | You or a technician must service it on schedule |
| Water supply | Not needed. Bottles arrive full | Needs a steady water source and usually power |
| Waste water | None at your home | RO units normally send part of the incoming water to drain |
| Space | Room for a bottle or two and a dispenser | A unit under the sink or on the wall |
| Where it can go wrong | A late delivery if you let stock run out | Overdue filter changes, which affect the water |
Work out the yearly cost of delivered water
At 12 bottles a month, regular supply at Rs 195 is Rs 2,340 a month, or Rs 28,080 a year. On the monthly advance plan at Rs 177 it is Rs 2,124 a month, or Rs 25,488 a year. These figures leave out the refundable deposit.
For a home RO filter, add the unit price, installation, the yearly cost of replacement filters and membranes, electricity, and any servicing visits. Divide by the years you expect to use it. Ask the seller for the real filter replacement schedule and price, because that is the cost people forget.
When delivered water makes more sense
- You rent, or may move soon, and do not want to leave equipment behind
- Your building has irregular supply or low pressure
- You want one predictable bill and no servicing calls
- You use a modest number of bottles a week
When a home filter can make sense
- You own the home and plan to stay for years
- You have steady supply and pressure
- Your use is high enough that the unit pays for itself
- You are disciplined about changing filters on time
One more check: what is actually in the water
Whichever route you take, ask for numbers. We print the composition in ppm on every bottle and publish it on the our water page. For a home filter, ask the seller what TDS the output water should have. What TDS tells you.
Want to test delivered water first? The 3 bottles free trial costs nothing to try, with eligibility confirmed on WhatsApp.
Try delivered water first
Ask for the free trial on WhatsApp and see how it fits your home.