Cheap sumps are never the way to go
While some do well for small amounts of water if you have a large amount coming in it is always best to get a better sump installed that can handle all the water intake.
Cleanspace crawlspace
All the water was drained and everything was tied back up to the ceiling this space is ready for spray foam insulation.
Cleanspace
The other side of the crawlspace
Sump and back up battery
TripleSafe sump pump and UltraSump Battery back-up