What does distribution pipe mean in practice?
The pipe connects the lower distributor to the header and conducts water between the bottom of the column and the multi-way valve.
When does it matter?
Incorrect length, crack or leaky seating allows the bed to be bypassed and the medium to be carried away.
Which solutions are related to it?
The pipe is cut perpendicular to the manufacturer's dimensions, protected against backfilling and placed axially in the head socket.