Pitch Fibre

Pitch Fibre Re-rounding

Pitch fibre was a common material used in drainage throughout the 1960s and 1970s, however, most pitch fibre has reached the end of its useful lifetime by now. Pitch fibre typically squashes and bubbles which prevents the flow of solids. The blisters in the pipe and the squashing can get so severe that the drain camera cannot pass through the pipe.

If the pitch fibre pipe has not degraded too badly then we can re-round the pipe which involves putting a heavy winched re-rounder through the pipe which forces the pipe out to the open position and removes any bubbling on the inside. Various grades of re-rounder are winched through the drain until the drain is back to its original diameter.

Once the pipe has been re-rounded and cleaned we install our liner to structurally secure the now circular but weakened pitch fibre pipe.