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Drainage glossary · Symptoms and warning signs

Surcharging

A drain or sewer filling above its normal flow level and pushing water back towards connected properties. It happens when rainfall exceeds the capacity of a combined system, or when a downstream restriction stops the flow.

What it means for you

Repeated surcharging during storms is usually a capacity issue for the water company, not a fault inside your boundary.

Not sure whether this applies to your property? Ask us. There is no call-out charge and the price is fixed before any work starts.

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