Wellpoint Installation Johannesburg

Wellpoint Installation Johannesburg covers shallow groundwater systems for properties across the metro: the wellpoint itself, the pump that lifts the water, the controller that switches it, and the irrigation, storage or filtration it feeds.

A wellpoint is a small-diameter point jetted into a water-bearing layer, usually somewhere between 6 and 12 metres down, with a surface-mounted suction pump above it. It is the cheapest practical way to get off the municipal meter for garden water, and it goes in inside a morning rather than over a week.

What a Wellpoint Installation Involves

Site and suitability assessment

The installer looks at what is likely to be under the property, where the pump can sit relative to power and the irrigation system, and whether there is jetting access. Ground with a high clay or stone content can stop the process before water is reached, which is why a no-water fee is quoted up front.

Jetting the point

High-pressure water is pushed down through galvanised steel pipes to open a hole into the sand or weathered material. Once the water-bearing layer is reached, an LDPE riser with a filter screen is fed inside and the steel pipe is withdrawn, leaving the point in the formation.

Pump, controller and connection

A self-priming jet pump, typically 0.75kW to 1.5kW on domestic sites, is mounted at the surface with a non-return valve. From there the system is either left on a garden outlet or wired into a pump controller, a pressure tank, an irrigation manifold or a storage tank.

Testing and handover

Flow is measured, the pump is set and the system is run long enough to clear the fines that come through on a new point. Water quality is worth testing at this stage, before anything is plumbed into filtration or irrigation.

Wellpoint vs Borehole

On the Highveld that choice is closer than it is on a sandy coastal plain. A wellpoint is the right answer where a thick, saturated layer of weathered granite, alluvium or pan sand sits within suction reach, and the wrong answer on hard quartzite ridge or where the water stands twenty metres down. A site assessment exists to settle which of the two you have.

Price Guide

Indicative Gauteng ranges, compiled from published installer pricing, to give you a sense of where a job lands before anyone visits:

Johannesburg Groundwater Conditions

Johannesburg is not wellpoint country the way a sandy coastal city is, and it is worth saying so plainly. A large part of the metro sits on hard Witwatersrand quartzite and shale, and on that ground a wellpoint has nothing to jet into. Where wellpoints do work here, it is because of three specific settings.

The first is the Halfway House granite under much of the northern suburbs, from Sandton and Bryanston through Rivonia, Sunninghill, Woodmead, Fourways, Midrand and Kyalami. Granite weathers in place to a coarse, sandy material that can run several metres thick, and where that layer is deep and saturated it jets. The second is the alluvial ground along the river and spruit lines: the Jukskei, the Braamfontein and Modderfontein spruits, the Klip River and the Natalspruit. The third is the East Rand, where the pan and vlei country around Benoni, Boksburg, Springs and Kempton Park carries genuinely shallow water, and where old mining and reclamation ground adds its own variability.

The ridges are the other half of the picture. Northcliff, Melville, Linksfield, Houghton, Observatory and the Bedfordview ridge are quartzite with thin soil over the top, and those properties are usually a borehole conversation rather than a wellpoint one. Ground also changes over short distances: two houses on the same street can return completely different results, so a successful point next door is encouraging rather than conclusive.

Altitude changes the arithmetic as well. A surface suction pump is limited by atmospheric pressure, and at Johannesburg's roughly 1,750 metres there is about twenty percent less of it than at sea level. Practical suction lift on the Reef is around 6 to 6.5 metres rather than the 7 to 8 metres quoted in coastal installations, so a standing water level that would be workable at the coast can be out of reach here.

Seasonality runs the opposite way to the Cape. The Highveld takes its rain between October and March, the water table recovers over summer, and it draws down through the dry winter to a September low. That low lands in the same weeks the garden needs the most water, which is the defining constraint on a Johannesburg wellpoint. A point set well into the saturated layer rides that swing; a marginal one goes quiet in August.

What the Water Is Good For

• Garden and lawn irrigation. The main use, and the one that makes the numbers work, since outdoor watering is a large share of a typical household's consumption.
• Automated irrigation. With a controller and adequate flow, a wellpoint can run zoned sprinklers and drip lines without touching the municipal supply.
• Pool top-ups. Common, but depends on water quality: iron-bearing water will stain plaster and fittings.
• Storage tanks. Filling a buffer tank slowly and drawing from it evens out a modest yield.
• Washing and outdoor cleaning. Vehicles, paving and equipment.

Drinking, cooking and washing are a different matter. Shallow groundwater sits close to surface contamination sources and needs laboratory testing before anyone treats it as potable. Under the City's Water By-law a groundwater system also may not be interconnected with the municipal water installation.

Registration and Water Rules

Which authority you deal with depends on where the property is. The City of Johannesburg and Johannesburg Water cover Sandton, Randburg, Roodepoort, Midrand and the central suburbs; Ekurhuleni covers the East Rand from Edenvale and Germiston out to Springs; Mogale City covers Krugersdorp. Most municipal by-laws require a borehole or wellpoint to be registered and prohibit any interconnection between a groundwater system and the municipal water installation. National guidelines gazetted in 2018 require groundwater abstraction to be metered, with records kept and available for inspection, and reasonable domestic garden use generally falls under Schedule 1 of the National Water Act rather than needing a licence. Requirements change, so confirm the current position with your municipality before you commit.

What to Check Before Appointing Anyone

• What is charged if no usable water is struck, and how is that decided?
• Is the pump included, and at what size and make?
• Who does the electrical connection, and is it in the price?
• Is the measured yield reported to you in litres per hour?
• Does the quote cover connecting to the existing irrigation system?
• What guarantee applies to the point, the pump and the workmanship?
• Will they handle the City application and registration paperwork?

Areas Covered

Quotes are arranged across the northern suburbs through Sandton, Bryanston, Morningside, Rivonia, Illovo, Hyde Park, Sunninghill and Woodmead, the Fourways and Midrand corridor including Kyalami and North Riding, Randburg, Ferndale and Honeydew, the central suburbs through Rosebank, Houghton, Melville and Northcliff, the West Rand through Roodepoort, Weltevredenpark and Krugersdorp, and the East Rand from Edenvale, Bedfordview and Germiston out through Kempton Park, Boksburg, Benoni, Springs and Alberton.

Frequently Asked Questions