Every drop of solution the machine puts down goes through a valve or fitting on its way there. That means every problem with coverage, spray pattern, or flow rate ends up being a valve or fitting problem somewhere upstream. Once you know that, diagnosing solution issues gets a lot faster.
This is the genuine Nilfisk Advance OEM VENTING VALVE HOUSING, part number 101117890, brand new in the box. Sticking valves and leaky fittings are cheap to fix and easy to overlook. Well worth the check when the machine's underperforming.
OBSOLETE: Advance 101117890 VENTING VALVE HOUSING
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