An FRP Bio Septic Tank is a self-contained sewage treatment unit made from high-strength fibreglass reinforced plastic. Unlike traditional RCC or brick-built septic tanks, FRP tanks are pre-fabricated, lightweight, and resistant to corrosion, chemical attack, and root intrusion. The built-in biological treatment process uses naturally occurring anaerobic and aerobic bacteria to break down organic waste, producing cleaner effluent that meets environmental discharge standards.