A spray wand for use with a chemical or chemical formulation in solid form. The wand hose end has a wand hose end valve for control of water flow from a hose. A refill cartridge having a swirl chamber may be attached to the hollow tube. The refill cartridge has at least one nub, indent and/or external channel or groove on its external surface.

A fluid spray nozzle tip can include a feed hole body that defines at least one feed hole and a spray outlet, the at least one feed hole being in direct fluid communication with the spray outlet without also being in fluid communication with an upstream spin chamber. The at least one feed hole can be a plurality of feed holes, wherein the tip further includes a pintle sealing surface body extending from the feed hole body and configured to allow a pintle to seal against a sealing surface thereof.

A spray wand for use with a chemical or chemical formulation in solid form. The spray wand has a spray wand body having a hollow tube with an angled wand spray end, a spray end selector attached to the angled wand spray end, a wand hose end screen inserted into or otherwise attached to the hollow tube of the spray wand body, and a wand hose end connected to the spray wand body. The wand hose end has a wand hose end valve for control of water flow from a hose. A refill cartridge having a swirl chamber may be attached to the hollow tube. The refill cartridge has external channels or grooves on its external surface as a water rinse feature for the spray wand.

A spray wand for use with a chemical or chemical formulation in solid form. The wand hose end has a wand hose end valve for control of water flow from a hose. A refill cartridge having a swirl chamber may be attached to the hollow tube. The refill cartridge has at least one nub, indent and/or external channel or groove on its external surface.

A spray wand includes: a hollow tubular main body; a nozzle mounted on the output end of the main body; and a valve assembly configured to mount the input end of the main body. The valve assembly includes: a housing having an input conduit for coupling the valve assembly with a fluid source; a sealing piston biased within the input conduit toward a sealing position thereof, and a valve core having a column rotatable within the interior space of the housing and a handle extending from the column, the valve core being rotatable between at least one open position corresponding to an open condition of the valve assembly and at least one closed position corresponding to a closed condition of the valve assembly. Upon rotation of the column to at least one open position thereof, the sealing piston biased within the input conduit is pressed from the sealing position.