The surprisingly expensive low priced  pumps

Peristaltic Hose Pumps vs. Progressing Cavity Pumps

Progressing cavity pumps are the traditional choice to dose lime and transfer sludges in water treatment and industrial process plants. With a relatively low initial purchase price, you would expect their long term ownership costs to be similarly beneficial, especially when compared to hose pumps with double the initial outlay. However, there are many factors that produce significant ownership cost differences and can make the low priced pump an expensive choice.