Most sprayers are similar in construction. Some parts are interchangeable. The manual will be needed to troubleshoot and repair the sprayer when if it malfunctions. Maintain extra gaskets, valves, nozzles, hoses, and small spare parts used in the sprayers. This is especially important for deployed ships.
Most manufacturers produce a service kit, which contains small parts needed for sprayer repair.
Worn or missing pump cylinder gasket Clean seating surfaces and replace gasket. Worn check valve Replace check valve. If sprayer has a trigger assembly, which is adjustable, tighten or loosen tension of valve spring. Inadequate spray or failure to spray, but pressure is o.k. Adjust wand spring tension.