Armstrong Concrete Septic Tanks provide a dependable and long-lasting solution for domestic wastewater treatment in properties not connected to the main sewer network. Manufactured from high-strength reinforced concrete, our tanks are designed to deliver excellent structural integrity, long service life and reliable performance for new builds, replacement systems and rural developments.

Our septic tanks feature a three-chamber design that allows solids to settle naturally while wastewater passes through successive settlement chambers before discharging to a percolation area. Where site conditions require, treated effluent can also be pumped to a raised percolation area or tertiary treatment system directly from the final chamber, eliminating the need for a separate pump chamber in many installations. Manufactured using high-strength concrete and tested to recognised European standards, Armstrong Concrete Septic Tanks provide a durable alternative to lightweight plastic systems while offering excellent hydraulic efficiency and long-term peace of mind for homeowners and contractors alike.