This lead through should be used when the ebb and flow trays are used with a drip irrigation system.
The lead through is inserted through a hole in the discharge point in the ebb & flow tray and secured with the nut. At the other end of the transit, 32 mm PVC couplings can be attached for the water drainage pipe.
After each watering, the water that leaks out from the bottom of the pots will be drained and the tray will fall completely dry.
In this way, several trays can be interconnected quickly and easily.