Looks like the gound water table is higher than the floor level of the basement and he's got positive head pressure pushing on the foundation/floor. This would explain the "water bubbling in" at the interface between the sump well and the floor slab and also at the cold joint between the wall and floor. If the sump were overwhelmed then the sump pit would be filled and water would be backing up from the pit as well. The sump pits are necessarily floor drains and I suspect his basement slab doesn't slope to the pits so when water gets to the floor level it runs towards the low points in the center. Has there been unusually high rainfalls or meting snow on his area that would cause the groundwater table to get higher than normal? Looks like the the pumps are working to keep a sinking ship afloat and are just recirculating water until the ground water level recedes below slab level.
I'd say those sumps are working to full capacity. If he loses power he'll sure see some water in there.
