What are the installation methods for submersible sewage pumps?
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According to the definition of submersible sewage pumps provided by Fengqiu Water Pump Factory, such pumps can have their installation method determined by the principle of installation; they can be installed in a wet manner (with the pump submerged in liquid) or in a mobile setup. In the fixed wet installation, the water pump slides down along guide rods in the sump to the outlet position at the base; due to the weight of the pump, an automatic coupling seal is formed, eliminating the need for maintenance personnel to enter the sewage tank during repairs. The mobile installation involves placing the submersible sewage pump in the location where it is needed, and connecting it to the outlet pipe. This installation method is suitable for temporary drainage and emergency response to sudden floods.
I understand the mobile type, but why does the fixed type also move?