US Patent 11300473 Plumbing stack leak test cell

Semi-automated testing devices for a plumbing stack are disclosed. A semi-automated testing device in accordance with the present disclosure may comprise a transfer pump configured to automatically fill the plumbing stack; at least one automated gripping element configured to grip a supplemental pipe coupled to a pipe of the plumbing stack via a connection; at least one automated sealing element configured to seal the connection; and at least one sensor configured to measure a water level of the supplemental piping. A method of testing the plumbing stack with the semi-automated testing device is also disclosed.