QUESTION
Where are the serial numbers located?

ANSWER
The Ventura 150, Catalina 300, and Newport series 400, 700, and 1000 have a Serial Number attached to the outside of the Feed Pump Module:  (XX/XX000/00/00).  This number provides us with the model, size, and date of manufacture of the unit. 

Earlier systems such as the 200C, 380C, Santa Cruz and Monterey units with the MPC-3000 have a similar serial number on the MPC-3000 electrical box.

In addition, each Clark Pump has a separate serial number engraved in the front of the Center Block just above the feed water inlet: (0000-00).

When contacting the factory for registration, technical support, or parts, please reference the Clark Pump serial number followed by the number found on the pump module or electrical box.

Note: earlier watermaker models had only a ten digit Clark Pump serial number.