Maintenance
Ease of maintenance is another element which can make precast SuDS and attenuation tanks last longer than other alternatives. Precast SuDS are usually fully accessible and any sediment which makes it inside a precast attenuation SuDS can be removed.
During maintenance, precast SuDS can take significant water jetting pressure reaching up to 4,000 psi, removing any FOG or sediment from the attenuation system. This is compared to 2,600 psi only for most virgin plastic pipes (as suggested by the Manual of Drain & Sewer Cleaning).