A conduit cleaning apparatus connectable to a fluid inlet feed line and an outlet drain line comprising: a housing assembly having an inlet portion, an outlet portion, and a bight portion connecting said inlet portion and said outlet portion thereby forming a fluid flow path therebetween, said inlet portion comprising: an inlet connector member at a first end for attachment to said inlet feed line, said inlet connector member having, when attached to the inlet feed line, a vertical longitudinal axis (L 3); an inlet leg portion extending from said first end at said connector member to a second end at said bight portion, said inlet leg portion having a longitudinal axis (L 4) extending therethrough at a sloped angle from said vertical longitudinal axis (L 3) of said inlet connector member wherein said inlet leg portion slopes downwardly from said inlet connector member toward and into said bight portion; said outlet portion comprising: an outlet connector member at a first end for attachment to said outlet drain line, said outlet connector member having, when attached to the outlet drain line, a vertical longitudinal axis (L 5); and an outlet leg portion extending from said first end at said outlet connector member to a second end at said bight portion, said outlet leg portion having a longitudinal axis (L 6) extending therethrough at a sloped angle from said vertical longitudinal axis (L 5) of said outlet connector member, wherein said outlet leg portion slopes upwardly out of and away from said bight portion to said outlet connector member, wherein said longitudinal axis (L 6) of said outlet leg portion intersects with said longitudinal axis (L 4) of said inlet leg portion such that said inlet leg portion and outlet leg portion form a V shape; characterised in that said bight portion has, when considering a plane containing the axes (L 3, L 4, L 5, L 6), inner bight walls presenting a generally circular shape along the fluid flow path. a housing assembly having an inlet portion, an outlet portion, and a bight portion connecting said inlet portion and said outlet portion thereby forming a fluid flow path therebetween, said inlet portion comprising: an inlet connector member at a first end for attachment to said inlet feed line, said inlet connector member having, when attached to the inlet feed line, a vertical longitudinal axis (L 3); an inlet leg portion extending from said first end at said connector member to a second end at said bight portion, said inlet leg portion having a longitudinal axis (L 4) extending therethrough at a sloped angle from said vertical longitudinal axis (L 3) of said inlet connector member wherein said inlet leg portion slopes downwardly from said inlet connector member toward and into said bight portion; said outlet portion comprising: an outlet connector member at a first end for attachment to said outlet drain line, said outlet connector member having, when attached to the outlet drain line, a vertical longitudinal axis (L 5); and an outlet leg portion extending from said first end at said outlet connector member to a second end at said bight portion, said outlet leg portion having a longitudinal axis (L 6) extending therethrough at a sloped angle from said vertical longitudinal axis (L 5) of said outlet connector member, wherein said outlet leg portion slopes upwardly out of and away from said bight portion to said outlet connector member, wherein said longitudinal axis (L 6) of said outlet leg portion intersects with said longitudinal axis (L 4) of said inlet leg portion such that said inlet leg portion and outlet leg portion form a V shape; characterised in that said bight portion has, when considering a plane containing the axes (L 3, L 4, L 5, L 6), inner bight walls presenting a generally circular shape along the fluid flow path. an inlet connector member at a first end for attachment to said inlet feed line, said inlet connector member having, when attached to the inlet feed line, a vertical longitudinal axis (L 3); an inlet leg portion extending from said first end at said connector member to a second end at said bight portion, said inlet leg portion having a longitudinal axis (L 4) extending therethrough at a sloped angle from said vertical longitudinal axis (L 3) of said inlet connector member wherein said inlet leg portion slopes downwardly from said inlet connector member toward and into said bight portion; said outlet portion comprising: an outlet connector member at a first end for attachment to said outlet drain line, said outlet connector member having, when attached to the outlet drain line, a vertical longitudinal axis (L 5); and an outlet connector member at a first end for attachment to said outlet drain line, said outlet connector member having, when attached to the outlet drain line, a vertical longitudinal axis (L 5); and an outlet leg portion extending from said first end at said outlet connector member to a second end at said bight portion, said outlet leg portion having a longitudinal axis (L 6) extending therethrough at a sloped angle from said vertical longitudinal axis (L 5) of said outlet connector member, wherein said outlet leg portion slopes upwardly out of and away from said bight portion to said outlet connector member, wherein said longitudinal axis (L 6) of said outlet leg portion intersects with said longitudinal axis (L 4) of said inlet leg portion such that said inlet leg portion and outlet leg portion form a V shape; characterised in that said bight portion has, when considering a plane containing the axes (L 3, L 4, L 5, L 6), inner bight walls presenting a generally circular shape along the fluid flow path.