Rear Washer Fluid Line

[KJ zGal]

My KJ has been leaking windshield washer fluid when I try to use the rear dispenser. I can see it leaking, but can't seem to locate the source. I know it isn't the main tank because it only leaks after trying to use the rear wiper. Does anyone have any experience replacing and/or fixing whatever it is that's broken/cracked? I'm assuming it's a hose? FYI, the -20 fluid apparently freezes at -10 =[

 

[Billwill]

There is only the one tank up front for the washers.
The pump turns in one direction to supply water to the front and turns in the other direction to direct water to the rear. There are some plastic valves involved to direct the water to front or back so you may have a blockage or a torn pipe going to the rear.