Patent ID: 8757258

Claim:
A cascading liquid air removal filter method comprising minimizing a flow of a plurality of air bubbles into a pump under a liquid and in a well by: attaching a filter system to a column of a well between said column and a casing and above a drawdown liquid level within said well, slowing a cascading liquid prior to splashing a liquid surface by forcing said cascading liquid to trickle through a plurality of bristles in said filter system; slowing said cascading liquid comprises forcing said cascading liquid to pass through said filter system and slowing said cascading liquid into a trickling liquid by blocking a portion of a space between a static liquid level and said drawdown liquid level, allowing said cascading liquid to penetrate said plurality of bristles along a one of a plurality of non-linear paths between a first end and a second end of said filter system, and trickling said liquid through said filter system and thereby slowing said cascading liquid into a trickling liquid; trickling said cascading liquid through said filter system comprises hitting said cascading liquid with said plurality of bristles as said cascading liquid is pulled downward through said filter system; and wherein, said liquid comprises said liquid surface at a liquid level of said liquid in said well said liquid comprises said cascading liquid while falling toward said liquid surface, said drawdown liquid level comprises said liquid level when said pump is pumping, said static liquid level comprises said liquid level when said pump is not pumping, said filter system comprises said plurality of bristles, and said filter system comprises a bristles element having a plurality of bristles attached to a central portion of said filter system.