Economical filter changing apparatus and method for electrical discharge machines and other applications

An electrical discharge machine (EDM) fluid-filtration system, comprising:

• a generally cylindrical EDM filter receiving fluid from an EDM machine through a bottom opening to be filtered from the inside out;
• a base;
• a generally cylindrical housing to receive the filter, the housing having a top that opens and a bottom cap with an interior inlet fitting coupled to a supply line carrying fluid to be filtered;
• and
• a pair of opposing swing arms, each having one end pivotally connected to the base and another end pivotally connected to an opposing side of the housing, the housing and swing arms facilitating:
• a first state, wherein the housing and filter are vertically oriented with the bottom opening of the filter sealed against the inlet fitting for filtering operation,
• a second state, wherein the housing is pivoted such that the top is oriented downwardly allowing the filter to disengage from the fitting and slide oat of the housing, and
• an intermediate position wherein the housing is tilted for the loading of a new filter.