Sump Jet Australia
Sump Jet can be manufactured to fit your requirements. A roof sump eliminates standing water at the roof drain and is probably the most important factor in the preventing debris buildup and rusting gutters.
Without a roof sump, the drain ring will hold back water, trapping debris. This begins to obstruct the drain, creating more ponding, which in turn collects more debris until the drain is fully obstructed or cleaned.