Yes, we're trained for CFE, but prefer not to enter tight spaces if we don't have to.
Regarding Flygt/ABS/KSB style pumps (submersible centrifugal non-clog), I initially considered these, but the efficiency is very low (60% at BEP) compared to submersible turbine pumps (80%). At $.41/kwh, this...
I've got a 42' deep, 6' dia wetwell drawing water from an infiltration gallery next to a river. Currently, we have 3 small (250 gpm) submersible vertical pumps installed, but we plan to replace them with two 450 gpm @ 85' TDH submersible vertical pumps (Grundfos or equal). The exisitng pumps are...
