Considered to be an agriculture application, pumping of diaphanous earth for filtration purposes is a challenge for any pump.

Abrasiveness is always a concern. OBL pumps are employed on a widespread basis in microbreweries, such as Weed Ales in California. Weed says that an OBL pump has actually been running since 1995.

They purchased this pump a few years ago, and only changed the seals. It continued to operate flawlessly today.