1) Fast answer (who wins, when)
If your water use is small and occasional (construction bursts, emergencies, low-occupancy homes), bowsers can make sense because you avoid a big upfront project. If your use is high and consistent (apartments, institutions, farms, or estates), a borehole often becomes cheaper after you cross a break-even point—especially when deliveries become frequent.
2) Bowser costs: what you’re really paying for
Bowser pricing varies by location, distance, road access, time of day, and whether it’s potable quality. To compare fairly, convert everything to KSh per litre.
- ✓Delivery frequency
Once a month feels fine. Twice a week becomes a lifestyle. - ✓Supply risk
During shortages, prices can rise and delivery times can stretch. - ✓Quality variability
Potable vs non-potable supply should be clear and documented.
3) Borehole costs: total project cost (not just drilling)
Many people compare bowser costs to “drilling per metre” and forget everything else. A realistic borehole budget includes: survey/siting, drilling, casing/screens, development, test pumping, water quality testing, pump + controls, power (grid/solar), storage tanks, and distribution plumbing.
- 1Hydrogeological survey + siting
Reduces risk and guides depth expectations. - 2Drilling + construction
Cost depends on geology, depth, and materials. - 3Development + test pumping
Confirms sustainable yield for correct pump sizing. - 4Equipping the borehole
Pump, controls, pipes, cables, headworks, safety. - 5Storage-first system
Tanks buffer demand, improve pressure stability, and protect the borehole.
5) Quality & reliability (the non-money part)
If you are buying water by bowser, quality and continuity depend on suppliers and logistics. With a borehole, quality depends on geology + testing + treatment + hygiene. Reliability depends on yield, correct pump sizing, storage, and maintenance routines.
6) Break-even calculator (bowser vs borehole)
Put your real numbers here. This gives a simple financial comparison (not a substitute for a site survey).
Notes: Bowser costs can spike during shortages. Borehole “total project cost” should include survey, drilling, equipping, power, tanks, and distribution.
7) Decision checklist (use this before you commit)
This is the clean way to decide without emotions:
- ✓How many litres per month do you actually consume?
If you don’t know, start tracking deliveries and tank refills for 30 days. - ✓Is your demand steady or seasonal?
Seasonality changes break-even and storage needs. - ✓Can your site reliably access bowser deliveries?
Road access + turn-around + security + scheduling. - ✓What’s your risk tolerance?
Boreholes reduce delivery dependence but require proper siting and system design. - ✓Will water be used for drinking?
Then testing and treatment planning become non-negotiable.
Want a site-specific cost comparison?
Share your location, monthly litres, current bowser price, and intended use (home/rentals/farm/institution). We’ll advise a realistic borehole budget and a break-even range that makes sense.
8) FAQ
Is “drilling cost per metre” enough to budget a borehole?
No. Drilling is only one piece. Survey, development, test pumping, pump + controls, power, tanks, and distribution often decide the true project total.
What’s the fairest way to compare bowsers vs borehole?
Convert both to a cost per litre over time. For bowsers: price per delivery ÷ litres delivered. For boreholes: (capex amortized + monthly running cost) ÷ litres used.
What if my borehole yield is not very high?
Many sites still succeed with a storage-first design: pump steadily into tanks, then supply demand from storage with proper pressure control.