Periodic (4-6 weeks) or as required,

cleaning by water hosing or water jet cleaner at 30-100 bars to unclog dust and mud trapped in PDC.

PDC's optimal screening stops sand, leaves and small debris from entering drainage channels and prevents clogging of outlet pipes, avoiding flooding during rainstorm.

Clearance of ponding by sweeping water onto PDC not clogged with mud for water to drain through

sweep clear sand and mud on PDC as much as possible.

When require, remove PDC to flush or back flush clear by hose

PDC will continue to perform as new.