Rookie Needing Help

[MEP001]

IMO this confirms it's not the air, it's the strength of the presoak, otherwise it wouldn't have sprayed properly with undiluted triple foam. Also some of the nozzles in your picture look like they're partially clogged. You said above that there seems to be a restriction inside the arm, it may be the steel fitting of the high pressure hose that feeds that part of the arm. That would be the next thig I'd check.

 

[NewGuy401]

IMO this confirms it's not the air, it's the strength of the presoak, otherwise it wouldn't have sprayed properly with undiluted triple foam. Also some of the nozzles in your picture look like they're partially clogged. You said above that there seems to be a restriction inside the arm, it may be the steel fitting of the high pressure hose that feeds that part of the arm. That would be the next thig I'd check.

That's what I was doing tonight. I took both hoses and fittings off the driver side. They were all clean as a whistle.