One of the many reasons we sell and have sold for more than a decade, these lines of pumps (see list below) is that they can be rebuilt.
Typically, when these pumps need attention, it's a need for bearings and/or seals.
Unlike most other pump manufacturers, these pump companies have, in place, a rebuild program. The costs are typically 1/4 or less of the cost of replacement.
We can give you a general estimate over the phone.