What materials are acceptable for constructing treatment and pump tanks?

The selection of materials for constructing treatment and pump tanks is critical to ensure durability, resistance to environmental factors, and effectiveness in sewage treatment. Fiberglass and reinforced plastic polyethylene are widely accepted materials because they offer several advantages.

Fiberglass is lightweight, resistant to corrosion, and non-reactive, which helps maintain the integrity of the tank over time when exposed to wastewater. Reinforced plastic polyethylene provides a high level of resistance to chemicals and is also durable against environmental stresses such as UV light and temperature fluctuations. Both materials are capable of withstanding the pressures associated with the contents of treatment and pump tanks while also allowing for easier installation due to their lighter weight.

In contrast, wood and metal are generally not recommended due to their susceptibility to degradation when exposed to moisture and corrosive substances. Concrete and clay can deteriorate over time and may not provide the same level of waterproofing and chemical resistance as fiberglass and reinforced plastics. Similarly, while brick and stone can be strong, they are heavier and may not meet the required standards for sewage treatment systems, particularly when it comes to moisture management and structural integrity in varying soil conditions.

Thus, the choice of fiberglass and reinforced plastic polyethylene is preferred for their performance attributes and compliance with industry standards for on-site sewage facilities.