Built from the ground up.
Kenya's Leading Biodigester Company.
BioTank Africa is helping families move beyond septic tanks to smarter, cleaner sanitation systems.
7,000+
Homes served
Nationalwide
Delivery - T&C Apply
Expert
Installation Team
One Distributor
Per Zone
Since
2018
Our Mission
To create a better and healthier society by improving sanitation for the general public, thereby reducing the health challenges caused by poor sanitation in Africa. We aim to make safe, reliable, and environmentally sound waste treatment accessible to every home and business.
Our Vission
To provide standardized sanitation products and solutions at an affordable price that are readily available and easy to use for all — from urban households to rural communities across Africa.
Our Values
Integrity
We uphold the highest standards of honesty and transparency in every transaction and every customer interaction.
Technical Excellence
From quotation to post-installation support, we are committed to delivering a seamless, informative, and responsive experience for every client.
Synergy
We believe in the power of collaboration between our teams, our installation partners, and the communities we serve to achieve greater impact.
Our Story
Bio Tank Africa Ltd. is Kenya’s pioneer manufacturer and distributor of factory-made, ready-to-install plastic biodigester systems. Established in 2018 and headquartered in Thika, Kenya, the company has rapidly grown to become the market leader in affordable, eco-friendly onsite sanitation solutions for homes, businesses, and institutions across Kenya.
With over 7,000 homes and businesses served and a nationwide distribution network spanning four key branches, Bio Tank Africa has redefined what sustainable sanitation looks like for the everyday Kenyan. The company’s f lagship product line, the BioTank Biodigester® eliminates the need for costly exhauster trucks.
Bio Tank Africa’s portfolio extends beyond biodigesters to include grease traps, bio enzymes (Bioclean septic), oil and water separators, and Tazo- cleaning products — making it a comprehensive one-stop shop for wastewater management needs across the residential, commercial, and institutional sectors.
Our Products
Explore the full BioTank range – click to shop
What Our Customers Say
Frequently Asked Questions
Does the Biotank Biodigester ever get full?
No. Unlike a conventional septic tank, the Biotank Biodigester does not fill up. Naturally occurring microbial enzymes continuously break down waste and sludge anaerobically inside the chambers. The end product is treated effluent (mostly water), which is displaced into the
soak pit and safely absorbed into the ground.
Can it be installed in a waterlogged or swampy area?
Yes. The biodigester can be installed in swampy or waterlogged ground, provided it is positioned on the highest available point within that zone. This elevation prevents groundwater from backflowing into the system and protects its treatment performance.
Can it be installed in black cotton soil?
Yes. Black cotton soil sites need the correct biodigester size for your number of users and project specifications, together with an extended soak pit. The larger soak pit increases the surface area available for absorption, compensating for the soil’s naturally slow percolation.
How often should I add bio-enzymes to my biodigester?
For high-usage systems, add two packets of BioClean Septic every 6 months. For normal residential use, two packets applied once a year is enough to maintain a healthy bacterial colony.
Can grey water and black water both be directed into the biodigester?
No. Only black water (toilet wastewater) should enter the biodigester. Grey water from kitchens
and bathrooms should be routed separately, through a grease trap and directly to the soak pit, since it often carries detergents and bleaching agents that kill the beneficial bacteria the system relies on.
Do you carry out installation?
We don’t install directly, because the Biotank Biodigester is a plug-and-play system that does not require specialised personnel. Your local site plumber can install it using the included installation manual, and if needed, we can refer you to a qualified technician in your area.
Do you deliver countrywide?
Yes. We deliver countrywide, either through our company truck or via courier services at a standardised fee.