It would appear that they are reversibleby reversing polarity. [link|https://items.marco.it/media//attach/booklet/UP12-OIL_00_US.pdf|Here's a booklet for them|new_window=true].
+
It would appear that they are reversible by reversing polarity. [link|https://items.marco.it/media//attach/booklet/UP12-OIL_00_US.pdf|Here's a booklet for them].
If your model has an inlet filter or pressure switch then the answer doesn't hold. This answer is for the bare transfer type pump. Some of those other models have bleeder valves, etc.
Hi Matthew,
It would appear that they are reversibleby reversing polarity. [link|https://items.marco.it/media//attach/booklet/UP12-OIL_00_US.pdf|Here's a booklet for them|new_window=true].
If your model has an inlet filter or pressure switch then the answer doesn't hold. This answer is for the bare transfer type pump. Some of those other models have bleeder valves, etc.