Review

Residential sub-floor sump — review/repair to fix flooding issue

We have a sump pump in our house's sub-floor area, which doesn't seem to be draining effectively (the sub-floor is flooding substantially - up to 2 feet of water currently — 2 June). We think we need the sump pump looked at, to confirm whether repair/maintenance is possible and may fix our issue. If repairing/maintaining the sump isn't likely to resolve the flooding on its own we're also interested in understanding what our other options may be. Photos of the sump from after a previous flood have been included, alongside 2x photos of the flooding today. A few notes: 1. This is the second time we've had substantial flooding — the last time was when Wellington experienced heavy rain in mid-February this year. 2. We've been at this property for almost four years, and haven't had the sump maintained during that period. 3. The sub-floor is dirt, and is accessible through a hatch in the side of the house. 4. Video of the current state of the sub-floor (from the hatch) and how much the pipe associated with the sump is draining are available.