Kelly,Can you post a picture and description of your new spray rig? Prices?
Sure Steve! It�s not necessarily appropriate for many folks here, but I'm proud of it.
The
SBD Sprayer (TM) is a 12v �tank-less sprayer� that sources water-diluent from over the boat's transom. A herbicide or algaecide (contained within the coupled jug) is metered into the flow of diluent only when the spray-gun is triggered. Velocity is sufficient for algae-mat penetration and volume is suitable for most topical vegetation treatments. Spray-range is approximately 25-30', and the discharge solution-ratio may be adjusted as high as 2.5% in the rig's standard configuration.

The unit�s price-tag will generally limit its use to commercial or large-scale applications (esp. lake mgmt companies and irrigation canal operations), but pays for itself with these users through improved efficiency by eliminating the down-time required for loading and mixing convention tank-sprayers. Eliminating an onboard mix-tank also reduces weight, as well as the boat-size and propulsion-system that is needed to transport such tanks. It�s silent operation makes the treatment process much more pleasant, and avoids the drone of a gas engine.
A short video of the unit in operation is linked to the image below.

I also build �conventional sprayers" for use in boats and UTVs. Twin 3.6 gpm 12v pumps (45psi max) may be used independently (with 2 guns) or together through a single spray-gun. Connecting the spray-hose to a transom-mounted sub-surface injector-bar (with dropper-hoses) adds to the rig�s versatility. The dual pumps also provide a �back-up option� in case one pump becomes disabled during an application. Refilling the tank with water (while aboard a boat or UTV) is accomplished by tossing the �refiller device� into water and flipping the switch on a tank-mounted control-panel. The refiller loads the 50-gal tank with water in approximately 3.5 minutes; which is just enough time to measure and add product through the screw-on tank-lid. An internal jet-venturi agitator provides thorough mixing of the tank�s contents prior to resuming an application. Total weight of the 50-gal tank assembly (empty) is approximately 40 lbs. Smaller tanks (30 & 10 gal) and single-pump set-ups work great in narrower confines.

