Forespar Marelon Engine Flush Out Valve — Installation

Engine Flush Out System

• A "Y" valve built into a U.L. approved Marelon seacock: run fresh water or antifreeze through the inboard engine without changing hoses or using pumps.
• The seacock attaches to your existing Marelon or bronze thru-hull; the engine intake hose is simply re-routed to the valve barb.
• Available in 1", 1-1/4", 1-1/2" and 2" hose sizes.
• For any inboard engine on power or sailboats; regular freshwater flushing extends the life of the cooling system and makes winterizing faster.
• Two versions shown: flush out valve with hose barb top, and with garden hose top.

Instructions

1. Hard plumb your engine to the horizontal barb (on the right side of the valve in the drawing).
2. Connect your garden hose to the top connection.
3. Throw the handle and you are ready to flush.