The approved submersible sump pump U 3 KS has got a big brother now with the U 5 KS. There is a wide range of accessory available for both of them, e. g. alarm systems, swing-type check valves, etc.
It is available with or without float switch.
The U 5 K (S) is particularly maintenance-friendly due to the guide rail GR 32. It can come in ready-assembled tanks e. g. Hebefix 100 or Baufix 100/200 and is portable for clearing floods, emptying drainage sumps, irrigation.
It provides continuous operation when not submerged due to a motor cooling jacket.