Bi-directional cleanout with backflow preventer

A pipeline bi-directional cleanout unit with built-in backflow check valve, for use in a pipeline with a first end and a second end, comprising

• a ground level unit with a top and a bottom side, which is comprised of an access opening on said top side, and which includes a first and second guide tube selector, and a check valve access tube connector, in which a clean-out tool may be inserted into either said first or said second guide tube selector, and if inserted in said first guide tube selector is directed toward the first end of said pipeline, and if inserted in said second guide tube selector is directed toward the second end of the pipeline, and which also includes a check valve access tube connection through which a check valve may be removed or installed;
• a pair of guide tubes which have a first end and a second end, and which connect to said guide tube selectors at said first ends, and which connect at said second end to said tool guides of said pipe level unit;
• a check valve access tube with a first end a second end, which connects at said first end to said check valve access tube connection, and at second end with a check valve access tube receiver of a pipe level unit, and which includes check valve guide means, for insertion of said check valve into a working position in said pipe level unit, or for removal of said check valve through said check valve access tube,
• said pipe level unit comprising a clean out pipe section with a first direction tool guide and a second direction tool guide, each of which connects with said second ends of said guide tubes, and which guides a cleanout tool in a selected direction in said pipe, a check valve seat, for interfitting relationship with said check valve in a working position, and said check valve access tube connection, for connecting to said check valve access tube;
• said check valve interfiting in a working position in said pipe level unit, which admits fluid flow from one direction, but which blocks fluid flow from an opposite direction, and which is attached to a check valve rod, and which interacts with said check valve guide means, said check valve rod having with a first end and a second end, which attaches at said first end with said check valve, with said second end accessible for permitting insertion and or removal of said check valve, and which extends or retracts said check valve from said ground level unit to a working position in a pipe level unit;
• wherein
• said tool guides direct a cleanout tool along intersecting paths in said pipeline, so that all areas of the pipeline are traversed by said cleanout tool.

A bi-directional cleanout unit for use with a cleanout tool and in a pipeline with a first end and a second end, comprising;

• a grade level unit which provides a single grade level access point for insertion of a cleanout tool into said bi-directional cleanout unit;
• a generally tubular first guide tube, which attaches at an angle to said grade level unit, and which extends from said grade level unit in a vertical direction for attachment to a pipe level unit, with said first guide tube for insertion of a cleanout tool;
• a generally tubular second guide tube, which attaches at an angle to said grade level unit, and which extends from said grade level unit in a vertical direction for attachment to a pipe level unit, with said second guide tube for insertion of said cleanout tool;
• a pipe level unit, which comprises;
• a first direction tool guide, which attaches at one end to said first guide tube, and at another end to said pipe level unit, which directs a cleanout tool into said pipeline towards said first end of said pipeline;
• and
• a second direction tool guide, which attaches at one end to said second guide tube, and at another end to said pipe level unit, and which directs a cleanout tool into said pipeline towards said second end of said pipeline;
• wherein
• said first direction tool guide directs said cleanout tool into said pipeline across a path disposed between said first and second direction tool guides for cleaning across said path in one direction, and said second direction tool guide directs said cleanout tool into said pipeline across said path disposed between said first and second direction tool guides for cleaning across said path in an opposite direction, thereby selectively providing cleanout of said pipeline in opposite directions, with no uncleaned area associated with said pipeline path within said pipe level unit.