What is Uni-Bells recommendation for bell-direction during installation?
Uni-Bell typically recommends that the bell end points in the direction of work progress because, when joining pipe, it is easier to insert the spigot into the bell than it is to push the bell over the spigot. This also reduces the risk of soil or rubble being scooped under the gasket. However, because of the exceptional joint tightness afforded by PVC pipe, the direction of the pipe bell, relative to flow direction, should not adversely affect the performance of the pipe joint or system hydraulics.
