Borehole Paybackwhat a borehole costs and saves Run the numbers

Cape Town · wellpoints

Wellpoint or borehole in Cape Town: which pays back faster?

On the sandy Cape Flats and along parts of the coast, groundwater lies a few metres down. A wellpoint reaches it for a fraction of the cost of a borehole. We compared the two with Cape Town's 2026/27 tariffs.

By Borehole Payback · updated 24 October 2026

TOPSOILCLAY AND SANDWEATHERED ROCKWATER-BEARING ROCKHARD ROCK 020406080100120m 60 m

Will a borehole pay for itself?

–

Money back over 20 years

Garden water from each metro's average 2021–2025 weather; 2026/27 water and sewage tariffs incl. VAT; pump electricity at R3.50 per kWh. Drilling at R1 000 per metre incl. casing.

What our numbers show

Our calculations, data as of 24 October 2026

  1. A wellpoint with pump, about R15 000 as reported by a Cape Town owner, pays back in 1.2 yrs when it waters a 250 m² garden. A 60 m borehole for the same garden needs 7.4 yrs.
  2. Even a small 100 m² garden repays a wellpoint in 3.8 yrs: the investment is small and Cape Town's water and sewage tariff for garden-sized use is high.
  3. A wellpoint only works where the water table is shallow and the ground sandy. On clay or rock, or where groundwater is deep, the only option is a drilled borehole.
  4. Cape Town requires 14 days' notice before you sink a wellpoint or borehole, registration afterwards, and a City sign at the entrance of the property.
Payback in Cape Town, 250 m² garden
Borehole 60 m, 250 m² garden7.4 yrs
Wellpoint, 250 m² garden1.2 yrs

Wellpoint at about 8 m; borehole at 60 m; both water the whole garden; 2026/27 tariffs incl. VAT.

Payback by garden size, Cape Town

GardenWellpoint: net savingWellpoint payback60 m borehole payback
100 m²R3 970 / year3.8 yrs24.3 yrs
250 m²R13 015 / year1.2 yrs7.4 yrs
400 m²R24 852 / year0.6 yrs3.8 yrs
800 m²R52 155 / year0.3 yrs1.8 yrs

Wellpoint R15 000 complete with pump at about 8 m; borehole R94 500 at 60 m. Net saving after pump electricity and R1 000 a year upkeep.

What is the difference?

A wellpoint is a narrow pipe with a screened tip, driven or jetted into sandy ground until it reaches the water table, usually within a few metres of the surface. A suction pump at the surface draws the water up. A borehole is drilled by a rig, often through rock, to tens of metres, lined with casing, and needs a submersible pump at depth.

Wellpoints give less water and the water can carry iron, which stains paving and walls; owners on the Cape Flats report yields of a few hundred litres an hour. For a garden that is usually enough. A borehole costs more but reaches deeper, more reliable water.

Before you start

The same Cape Town rules apply to wellpoints and boreholes: 14 days' written notice before installation, registration afterwards, and the City's sign at the property entrance. See borehole rules.

This week

Metro of the week: eThekwini (Durban)

A household in eThekwini (Durban) using 30 kl of municipal water a month pays about R2 253 a month for water and sewage under the 2026/27 tariffs. A 60 m borehole watering a 250 m² garden would save about R4 769 a year after pump electricity and upkeep, and pay back in 19.8 years.