Abstract: A pipe connection assembly includes fixed and removable pipes and an anti-rotation assembly. The fixed pipe extends to a fixed pipe proximate end through a sidewall thickness of a vessel body such that the fixed pipe proximate end is open to a vessel interior and fixed in relation to the vessel body. The removable pipe extends between a removable pipe proximate end and a removable pipe distal end. The fixed and removable pipes include respective first and second pipe connectors at the fixed and removable pipe proximate ends. The first and second pipe connectors collectively define a bayonet connection. The removable pipe detachably connects with the fixed pipe via the bayonet connection. The anti-rotation assembly at least partially limit movement of the removable pipe in relation to the vessel independently of the bayonet connection, based on the removable pipe detachably connecting with the fixed pipe.

Abstract: A method of clearing residue from a fluid conduit includes commencing flush fluid flow through the fluid conduit and injecting a first fluid into the fluid conduit at a first point to induce turbulent flow of the flush fluid. The first fluid is preferably a gas. The method further includes sampling the flush fluid downstream of the first point to confirm the residue is adequately cleared from the fluid conduit.

Abstract: A method of clearing residue from a fluid conduit includes commencing flush fluid flow through the fluid conduit and injecting a first fluid into the fluid conduit at a first point to induce turbulent flow of the flush fluid. The first fluid is preferably a gas. The method further includes sampling the flush fluid downstream of the first point to confirm the residue is adequately cleared from the fluid conduit.