Sanitation & Drainage, Re-Engineered
Three engineering innovations developed by Sisal Engineering and Construction to solve the wastewater and sanitation problems conventional systems leave behind — researched, improved and proven in Ghanaian conditions.
Engineering better sanitation for Ghana.
Conventional soakaways, septic tanks and biofil toilets fail in predictable ways — clogging, desludging, odour, groundwater pollution and poor performance in difficult soils. Through research, field observation and practical experience, we developed three improved systems that address those failures directly. Each is designed for real Ghanaian conditions and suits residential, commercial and institutional developments.
Mechanical filtration plus biological treatment for domestic wastewater — reliable even in clay and waterlogged soils.
- Ends soakaway clogging & failure
- Protects groundwater
- Long life, low maintenance
An advanced onsite biofilter toilet, re-engineered for better treatment, easier maintenance and longer service life.
- No pit, no tanker
- Easier to maintain
- Compact & eco-friendly
An improved septic-tank system that treats better, needs less desludging and lasts longer than conventional tanks.
- Less desludging
- Reduced odour
- Cleaner effluent
Engineered here, proven here.
We developed them
Researched and improved by our own engineers — not imported off the shelf.
Treat, not just store
Biological and mechanical treatment on site, instead of storing waste until it fails.
Cheaper over time
Less emptying, less maintenance, fewer failures to fix.
Built for hard soils
Reliable performance in clayey and waterlogged ground where others struggle.
Solve it properly, once.
Free site assessment and written quote for any of our systems — no obligation.