Winterizing The Waste System - Four winns 318 VISTA Owner's Manual

C. Winterizing the Waste System
To winterize the waste holding tank, flush the tank
with.soap,.water.and.a.deodorizer.(e.g.,.Lysol..
Liquid )..Empty.the.tank.and.pour.two.(2).gallons..
™
(3.gallons.if.equipped.with.overboard.discharge)..
of R.V. antifreeze into the bowl and flush.
If.the.boat.is.equipped.with.overboard.discharge.
capabilities,.follow.the.normal.procedures.above...
Run.the.discharge.pump.only.long.enough.until.the.
antifreeze.solution.is.being.pumped.overboard.
For.additional.information,.refer.to.the.manufacturer's.
manuals.in.the.owner's.packet..
NOTICE
The instructions listed in this section provide a
working knowledge to winterize the water and
waste systems. However, to prevent possible
damage to components in your boat, Four
Winns recommends having the boat winterized
by your Four Winns dealer.
Water and Waste Systems - Section J Owner's Manual Page 9