To help you determine if you need to upgrade to 2 - 3-port solenoid valves, please read FAQ #29, "Cross-contamination with 6-port valves, a problem or not?" http://www.plantdrive.com/html/faq.html#30.

6-Port Valve with Buzzer: 6 port motor drive fuel selector valve with toggle switch, mounting bolts, wiring plug, and "Forgot-to-Purge" buzzer. Only draws power momentarily while switching from one position (fuel) to the other. A simple, low cost, reliable fuel selector valve for SVO/diesel selection. 60 PSI max. inlet pressure.

CANNOT BE USED WITH CONTROLLERS. Use two electric 3-port solenoid valves instead.

Small amounts of fuel are sent to opposite tank at each switching. Amount of SVO accumulation in diesel start/purge tank is minimal, and but we recommend redilution of diesel fuel by adding more diesel when diesel tank reaches halfway.

If using a very small diesel start/purge tank, and/or purging often, and/or in quite cold climates, you may wish to consider using two of our 3-port solenoid valves, and one of our control devices ( VO Control, NADA) instead, to prevent any amount of SVO entering the diesel tank. Note however, that those options are considerably more expensive and complicated to install. Customers have had excellent results with just this 6-port motor drive valve, and it represents excellent value for the money, doing the job of two 3-port valves.