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Full Issue PDF

  • Quad Compass
  • Fall Protection
  • Structural Plastics
  • Bottom Brush
  • Safety Aloft
  • Playing Wind Shifts

Download The Full December 2021 Issue PDF

  • Quad Compass
  • Fall Protection
  • Structural Plastics
  • Bottom Brush
  • Safety Aloft
  • Playing Wind Shifts

Download The Full November 2021 Issue PDF

  • Gear of the Year
  • Sticky Stuff
  • Wood Finishes
  • Non-skid Follow-up
  • Non-skid Tips
  • Fixing Pipe Threads

Download The Full October 2021 Issue PDF

  • Weather Wise
  • Weather Data Sources
  • Reading the Weather
  • Extra Anchor Lights
  • Anchor Light Rules
  • Soft Shackles Redux
  • DIY Dyneema Shackle

Download The Full September 2021 Issue PDF

  • Sailing Green
  • The Eco-friendly Galley
  • Burning Beach Plastic
  • The DIY Rocket Stove
  • Solar Panel Hazards
  • Customized Lifelines
  • Safer Fuel Jerry Jugs

Download The Full August 2021 Issue PDF

  • Going Block-less
  • Build Your Own Block
  • Caulk Like a Pro
  • Waterproof Connectors
  • Making Contact
  • A USB Blow Hard

Download The Full July 2021 Issue PDF

  • Varnish Value Guide
  • Clear Wood Coatings
  • 'Composting' Toilets
  • Dry Toilet Aggregate
  • DIY Waterless Heads
  • Fighting Urine Color
  • Outboard Maneuvers

Download The Full June 2021 Issue PDF

  • DIY Riding Sail/Awning
  • Mast Finish Options
  • Fixing Carbon Spars
  • Packing Extractor
  • Electric “Flares”
  • The Opal Experiment

Download the Full May 2021 Issue PDF

  • Survival at Sea
  • Survival Priorities
  • Global Rescue Update
  • Novel MOB Recovery
  • Waterproof Sock Test
  • Multihull Spinnakers
  • The Art of Drudging

Download the Full April 2021 Issue PDF

  • Defying the Odds
  • Remote Inspection
  • Crew Management
  • Make Whoopie (Slings)
  • Going Out on a Limb
  • Strainer Credibility

Download the Full March 2021 Issue PDF

  • Monohull Stability
  • Anchor Analysis
  • A DIY Stability Curve?
  • Incline Test Risks
  • Toilet Treatments
  • Tiller Extenders

Winterizing Your Boat’s Water System

Much of your winterizing success will depend on the initial condition of your existing water system. If it is nearly sterile (effectively chlorinated water), there may be too few bacteria and fungus present for infection to start. However, if you use less than 20 percent alcohol or glycol (after dilution with water left in the system) you are at risk of biological growth; the lower the concentration the greater the risk. This is the reason why vodka and other alcohol-based winterizing fluids should be avoided. In our testing these solutions acted like an invitation to a microbial feast.