SpareHand Multi-Purpose Cleaning Brush with Solution Chamber and Hose Attachment
Turn your ordinary garden hose into a cleaning machine.    This brush connect easily to standard garden hoses.  And the uniquely designed cleaning agent chamber gives you control of detergent, water, and their mixture - all in one.  The chamber fill cap is also a dial that controls the release of detergent - select "off" for water only and "on" to release a detergent/water mixture.