Looking for sewage treatment plants in Cape Town? SepticTankCleaning.co.za puts homeowners, smallholders, farms, lodges and businesses in Cape Town in touch with a treatment plant supplier who works in Cape Town and nearby areas of Western Cape. Fill in the job card and you receive a quote directly, free and with no obligation.
Sewage Treatment Plants in Cape Town
Sewage treatment plants in Cape Town are mainly wanted by estates, lodges, schools and industrial sites that sit beyond the municipal network or have outgrown a septic system. Give the daily flow, the number of users and where treated water will go, so suppliers serving Cape Town and the rest of Western Cape can propose a suitable plant.
Want to know more first? Our sewage treatment plants guide covers the options, what to check and what affects the price.
Septic tanks and drainage in Cape Town
Cape Town has an extensive sewer, but off-sewer areas are many: Kommetjie, Noordhoek, Hout Bay's upper slopes, Philippi horticultural area, Joostenberg and the Atlantic coast farms rely on septic tanks and conservancy tanks. Sandy soils on the Cape Flats mean a high winter water table, so soakaways flood in the wet months and sealed tanks are common. Granite and shale on the mountain slopes can need rock breaking. Industrial areas such as Montague Gardens and Paarden Eiland use grease traps and conservancy tanks. Honey sucker operators serve the metro from Epping, Montague Gardens and the Cape Flats, and portable toilet hire is busy at events.

Typical sewage treatment plants requests in the area come from:
- Houses: rarely used at a house; a septic tank or biodigester is normally enough
- Estates and complexes: a package plant for a whole estate, with treated water used on common gardens
- Restaurants, shops and offices: a plant for a mall, hotel or filling station away from the sewer network
- Factories, mines, sites and events: a plant for a mine camp or factory, with sampling and waste records
- Smallholdings and plots: a small plant for a large smallholding with several homes and heavy use
- Lodges, guesthouses and venues: a plant sized for peak guest numbers, reusing water on lawns in dry regions
- Farms and game farms: a plant for worker housing and a packhouse, with treated water for irrigation
- Schools, churches and clinics: a plant for a boarding school, clinic or hospital with steady, large flows
Local tips for Cape Town
Common here: conservancy tanks on the Cape Flats, septic tanks with soakaways on mountain slopes. Ask each operator or contractor to allow for this: ask for a pump-out before winter if your tank sits in low-lying sandy ground. Help usually comes from operators in Epping, Montague Gardens and across the Cape Flats.
Sewage Treatment Plants usually means aerated plant: activated sludge or MBBR, for 5 to 500 kL a day, built to suit, serviced monthly, sludge removed as needed. Ground in the area: sandy Cape Flats with a high winter water table: soakaways flood.
What to include in your request
- Daily flow in kilolitres, or the number of users
- Where treated water will go: irrigation, dam or river
- Power supply on site, or a generator or solar
- Plant type preferred: activated sludge, MBBR or open
- Whether you need servicing and sampling after commissioning
The more detail you give, the more accurate your quote will be.
Service area: Cape Town and surrounds
Operators, contractors and suppliers on our network work in Cape Town and surrounding areas, including Century City, Woodstock, Epping, Montague Gardens, Paarden Eiland, Claremont, Salt River. Give the suburb, holding or farm name so the quote can include travel, and say how soon you need someone.
