Borehole Drilling in Zimbabwe:
What You Need to Know Before You Drill

Why a Borehole Is Often the Best Investment in Zimbabwe

With municipal water supplies under increasing pressure across Zimbabwe — from Harare's chronic shortages to rural areas with no piped supply at all — a private borehole has become one of the most valuable infrastructure investments a homeowner, farmer, or business can make.

A well-drilled, properly equipped borehole can provide decades of reliable water supply with very low running costs, especially when paired with a solar-powered pump. But drilling blindly — without a survey, without a permit, and without professional guidance — is a common and expensive mistake.

Step 1: Start With a Hydrogeological Survey

Before a single metre of drilling begins, a professional hydrogeological survey is essential. This involves using resistivity equipment to measure how water-saturated underground rock formations are at various depths and locations on your property.

A quality survey will tell you:

• The most productive drilling location on your site
• The expected depth to water (vital for cost estimation)
• The likely water yield (litres per hour) you can expect
• Whether drilling is even viable at your site

Step 2: Obtain Your ZINWA Drilling Permit

In Zimbabwe, drilling a borehole requires a permit from the Zimbabwe National Water Authority (ZINWA). This is a legal requirement — not optional. Drilling without a permit can result in fines and the forced closure of the borehole.

The permit process involves:

1. Submitting an application to ZINWA with your property details and intended use
2. Paying the applicable permit fee
3. Waiting for approval (timelines vary — plan ahead)
4. Retaining the permit documentation for your records

Step 3: Understand Drilling Depths in Zimbabwe

Drilling depth depends entirely on your local geology. Here are typical ranges across Zimbabwe's main provinces:

Step 4: Choose the Right Casing

Borehole casing is the pipe that lines the drilled hole, preventing collapse and contamination. In Zimbabwe, uPVC casing is standard. The main options:

• uPVC Class 6 — standard pressure rating, suitable for most residential depths
• uPVC Class 9/10 — higher pressure, recommended for deeper boreholes or where ground conditions are challenging
• Single vs. Double Casing — double casing provides extra protection against collapse and contamination in problematic geology

Step 5: Select Your Pump

The pump type depends on your water source depth, flow rate requirements, and power source. For solar-powered boreholes, DC submersible pumps are ideal — they run directly from solar panels with no battery required during the day, and minimal inverter losses.

Step 6: Water Storage — Tank Size and Placement

A pump running from solar will only pump during daylight hours. A properly sized storage tank means water collected during the day is available around the clock. General guidance:

• Household (4–6 people): 2,500L–5,000L tank
• Small business or school: 5,000L–10,000L
• Farm use: 10,000L+ or multiple tanks

Elevated tanks (on a stand) provide natural pressure without a booster pump. Ground-level tanks require a pressure pump for household use.

Step 7: Water Quality Testing

Not all borehole water is safe to drink without treatment. In some areas of Zimbabwe, borehole water contains elevated levels of fluoride, nitrates, iron, or other minerals. A water quality test from an accredited laboratory is strongly recommended before using borehole water for drinking or food preparation.

The Complete Borehole Journey

Estimate Your Borehole Cost

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