Hi everyone, I've had a most frustrating day due to a problem with downstream injectors. My machine is an 8GPM Pressure Pro that I got from Bob last week. I've used it on four jobs and didn't have any problems until today.
I use General (fixed) injectors (size 2.1 for 3-5 GPM machines since I use 200 feet of hose) along with the JRod 4 way nozel holder setup for 8GPM machines. When I started my job today I wasn't getting any soap draw at all with an injector that worked fine over the past few jobs with my new machine. I always flush my injector after every job but for some reason today I wasn't drawing soap. I checked the arrow on the injector and it was facing the right direction. I checked all "O" rings and they all looked good. I even switched over to my spare gun which is rated at 12 GPM but the gun was not the problem.
After checking out everything I decided to put on a brand new injector. With the fresh injector I was now getting soap but when I switched to the rinse nozzzle I was still getting soap. I checked out everything I could think of but still the same problem.
I decided to switch over to my back-up (4GPM) machine with the correct JRod nozzle set and the injector worked fine. I got straight rinse water with the rinse nozzle and plenty of soap with the soap nozzle.
I'm completely lost as to what the problem may be. The motor and pump on my new machine seem to be working fine but the injectors are giving me fits. I'm at home now and plan on setting my rig back up in hopes of finding the problem and solving it but thought I'd run this by you guys to see if you have any idea(s) of what is causing this problem.
Thanks for any and all input.