No-pressure pipe lines can be tested by rubber inflated type pipe test
plugs.
These plugs are described as pipe plug and pipe test plugs which are
used
together. Designed for applications for pressure testing and blocking of
residential
DWV systems to repair maintenance and installation of municipal
infrastructure
including storm and sanitary sewer piping systems. Also designed for
fast and
reliable sealing or blocked of canals, joints, and inlets.