You can crawl under the car and do a visual inspection to see where the source is. I'll lay 50 to 1 it's the high pressure hose, I've never heard of the other (much cheaper) hose leaking.I take it you also did the power steering hose replacement at the same time? How did you determine which hose was leaking? Was it easier with the top of the engine off? Sorry for all the questions, but I've also got a leaking PS hose.
Hey, I'm not saying it can't be removed, I'm just saying the wipers don't have to be removed to change the plugs. Of course, if you want to remove it, that's ok too!WRONG! That metal bar that spans the whole engine compartment can be removed. You have to remove the wiper arms, wiper motor assembly, the plastic cover, and only then will the bolts that hold down the bar become visible. You'll need to remove the bar to get to the back end of the engine.
It also really helps to open up the engine bay. If you have to go after the power steering pump or hoses, it might be good to remove the bar to have more working room. It takes about 30 minutes to remove it.