Patent ID: 8440088

Claim:
A method for priming a fresh filter, the said fresh filter having filtration media enclosed within a housing having a drain in a lower end, and the housing including inlet and outlet ports in an upper end to direct fluid into and out of the housing, the filtration media in said fresh filter becoming spent over time as the filter removes particulate and other contaminants in a fluid stream passing through the media; the method comprising i) closing an inlet port of a spent filter and connecting an outlet port of said spent filter to said inlet port of said fresh filter; ii) inverting said spent filter; iii) opening the drain in said spent filter in an inverted position to allow air to enter said spent filter through the drain, and fluid in said spent filter to drain under gravity into said fresh filter, and thereby expelling air in said fresh filter through said outlet port of said fresh filter; and iv) disconnecting said spent filter from said fresh filter.