The easiest Water Fed Pole TAP in the industry ...
Regardless your extended pole length, simply kink your RHINO TUBE in the KINK, and the flow stops.
RHINO-TUBE does not remember being kinked, so you have no damage to the tube.
There are two ways to use kink - either grab the tube, and kink it OFF, pull it out for ON.
If you are working a long time at he same extended pole height, with the intention of ON/OFF flow, simply leave the tube in KINK, and push it so there is a loop above the KINK for FLOW ON, and pul the kink tight for FLOW OFF (see photos) .