Zebra Mussel infestation is a rapidly growing problem in the U.S. especially in the Midwest and Great Lakes regions.  Old-fashioned carpeted bunk boards provide an excellent attachment surface for zebra mussels, plenty of rough, moist surface...and the mussels could continue to live for a while as the carpet is slow to dry out...leaving ample time to transfer the mussels to another body of water.  NOT with Ultimate Bunk Boards!  Even though mussels can attach to plastic,  there is far less attachment area than with carpeted bunks and the boards are much easier to clean off and dry much faster.  Once the boards are dry any remaining attached mussels will die from lack of water.    No matter which style of board you use, when it comes to zebra mussels always remember to: 1.  Drain all bilge water, live wells, bait buckets, and other water from your boat, engine and equipment.  Dump leftover bait into the garbage at the infested waterbody - live bait should not be taken from infested to uninfested waters. 2.  At the ramp, thoroughly inspect your boat's hull, drive unit, trim and trolling motor plates, prop guards, transducers, anchor and anchor rope and trailer.  Scrape off and trash any suspected mussels.  Remove all hitchiking water weeds. 3.  After boating, flush the hull, drive unit, live wells & pump system, bilge, trailer, bait bucket, engine cooling system and other parts that have gotten wet using a hard spray from a garden hose.  This applies to parts of the trailer, as well, including bunk boards.  If the boat was in infested waters for a long period of time, use HOT water or tow the boat through a do-it-yourself car wash.  Do not use chlorine bleach or environmentally unsound solutions.  Wash water should not drain to uninfested waters or storm sewers leading to uninfested waters. 4.  Dry boat and trailer in the sun for 5 days before launching into uninfested waters.   Information Source: Director, National Aquatic Nuisance Species Clearinghouse Sr. Extension Specialist, New York Sea Grant