Double barrel sprayer for selective spraying of water or diluted product and use thereof

A portable sprayer for applying a diluted product to a surface to be treated, comprising a housing having first and second inlets, first and second outlets, a mixing chamber and a valve member;

• the first inlet supplying water to the sprayer;
• the second inlet supplying a concentrated liquid product to the sprayer;
• the mixing chamber being in fluid communication with the first and second inlets such that water is mixed with the concentrated liquid product to form a diluted product by feeding water through the first inlet and feeding the concentrated liquid product through the second inlet, the mixing chamber being located in an insert supported by the housing;
• the first outlet spraying rinsing water from the sprayer to allow removal of diluted product from a surface to be treated;
• the second outlet spraying the diluted product from the sprayer onto a surface to be treated;
• and the valve member being operable to selectively feed the diluted product to the second outlet or feed rinsing water to the first outlet, the housing comprising a molded piece of plastic having upper and lower passages therethrough, the upper passage being in fluid communication with the first outlet and the lower passage being in fluid communication with the second outlet, the insert being located in the second passage.

A portable sprayer for applying a diluted product to a surface to be treated, comprising a housing having first and second inlets, first and second outlets, a mixing chamber and a valve member;

• the first inlet supplying water to the sprayer;
• the second inlet supplying a concentrated liquid product to the sprayer;
• the mixing chamber being in fluid communication with the first and second inlets such that water is mixed with the concentrated liquid product to form a diluted product by feeding water through the first inlet and feeding the concentrated liquid product through the second inlet, the mixing chamber being located in an insert supported by the housing;
• the first outlet spraying rinsing water from the sprayer to allow removal of diluted product from a surface to be treated;
• the second outlet spraying the diluted product from the sprayer onto a surface to be treated;
• and the valve member being operable to selectively feed the diluted product to the second outlet or feed rinsing water to the first outlet, the insert being located in a recess in the housing, the insert including a supply passage in fluid communication with the second inlet, an inlet passage in fluid communication with the first inlet and an outlet passage in fluid communication with the second outlet, the outlet passage being larger than the inlet passage and the supply passage entering the outlet passage at a location adjacent an interface between the inlet passage and the outlet passage.