Water sitting in an external gully long after the appliance discharging into it has stopped. The gully itself may be silted up, or the run leaving it may be restricted further along.
What it means for you
Standing water at the surface is the earliest visible sign of a blockage forming underground, and the cheapest moment to act.
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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