Fiberglass reinforced septic tank refers to a specialized equipment made of synthetic resin as the matrix and glass fiber reinforced material for treating domestic sewage. Glass reinforced plastic septic tanks are composite material products actively promoted by the country. Their advantages such as light weight, high strength, good toughness, corrosion resistance, bright colors, and mirror finish have far surpassed similar products made of ceramics, hard plastics, steel and other materials. They are widely used in chemical, petroleum, construction, textile, aviation, navigation, transportation, power, metallurgy, machinery, medical, food, papermaking, environmental protection and other fields.