Spring in the Pacific Northwest means the working start of the boating year. The PNW sailing season unofficially opens on the first weekend of May; the working window from mid-March to do what would take a week in a warmer climate is six weeks. Puget Sound barnacles are aggressive. Electrolysis eats zinc anodes faster than expected. Raw-water cooling systems accumulate scale that impairs performance over a winter. The boat that sat idle through a wet PNW February is not the boat that is ready for an April weekend on Puget Sound — until the working commissioning is done.
The PNW commissioning sequence runs in this order: hull → engine → rigging → electrical → safety → soft systems → documentation. Each section below.
Haul-out and bottom
For boats that haul annually (recommended in Puget Sound), schedule before April 1 — yards fill up fast. While on the hard:
- Inspect the hull for osmotic blisters. Small blisters in the gelcoat are usually cosmetic; large ones with dark fluid indicate moisture intrusion requiring professional attention.
- Replace all zinc anodes if more than 50 percent consumed. PNW brackish water is particularly corrosive; even anodes that look workable should be replaced annually as preventive maintenance. Inspect shaft, rudder, prop, and hull anodes.
- Apply bottom paint. Puget Sound requires antifouling; barnacles begin colonising within days of splashing in warm months. Apply per the manufacturer’s instructions; typically two coats, with a booster coat near the waterline.
- Inspect and lubricate the shaft seal and stuffing box. Dripless seals need annual inspection; traditional stuffing boxes need packing replacement every few years and must drip slightly when running (2–4 drips per minute is the working rate).
- Inspect the prop and shaft for dings, bent blades, and wobble. A bent prop causes vibration that damages the cutlass bearing and shaft seal. Straighten or replace before splash.
For boats kept afloat through winter, a snorkel-and-mask inspection of the bottom, through-hulls, and zincs in the water at slack tide is the working substitute. Heavy growth means a haul; minor growth is workable with an in-water scrub and the next year’s haul.
Topsides and exterior
Inspect the topsides. PNW winter is harsh on gel coat and varnish. Look for cracks, delamination, or areas where moisture may have infiltrated. Check all through-hulls, seacocks, and skin fittings — corrosion is the working pathology in PNW salt and brackish water.
Examine the cabin trunk, windows, and hatches. Moisture is the persistent enemy of the PNW boat; any degraded seals will let water in. Replace gaskets and reseal where necessary.
Exercise (open and close) every seacock to confirm it moves freely. A frozen seacock is the working pre-season find.
Engine
The engine needs working attention before the season:
- Change the oil and fuel filter. Do this before haul-out so the old oil sits over winter, or right at season start. Either works; both beats never.
- Replace the impeller. Raw-water impellers fail without warning and cause overheating damage. Replace annually. Keep the old one as a spare.
- Inspect belts and hoses. Squeeze hoses — they should be firm but not brittle. Cracks, bulges, or soft spots mean replacement. Engine-room fires from a failed coolant hose are working serious business.
- Check coolant level and freeze protection for freshwater-cooled engines.
- Check the raw-water strainer — clear any debris from winter.
- Run the engine at the dock for 20 minutes and check for overheating, unusual exhaust colour (white = coolant in exhaust; black = rich running), and oil leaks.
The first start of the season is the working diagnostic moment for the diesel; pay attention to exhaust colour and any unusual valve clatter that didn’t exist in October.
Rigging (sailboats)
Spring is the working time for a thorough rigging inspection. PNW winter storms stress rigging continuously.
- Inspect standing rigging at the masthead with binoculars or go aloft. Look for broken wire strands at swagings, cracked toggles, and bent cotter pins.
- Replace halyards showing signs of wear. Inspect sheaves at the top and bottom of each halyard.
- Check turnbuckles, toggles, and chainplates for corrosion, cracks, and loose fasteners.
- Inspect the mast step for moisture damage or rot (wood boats).
- Lubricate winches with a Teflon-based lubricant.
The salt spray and rain of Puget Sound corrode stainless steel surprisingly quickly. New running rigging is cheap insurance compared to a halyard breaking mid-race.
Electrical and electronics
Test every working electronic — GPS, chart plotter, radio, autopilot, instruments. Batteries lose charge during winter storage. Corrosion on electrical connections is the working PNW pathology; inspect and clean all major connections.
- Load-test the house batteries. A battery that holds voltage at rest but drops under load is failing. The PNW season is too short to discover this underway.
- Check the VHF and test DSC distress capability. Verify weather broadcasts are received.
- Test all nav lights.
- Verify the EPIRB or PLB is functional and the registration is current.
- Test the shore-power connection and verify the charger is functioning.
Safety equipment
The working pre-season verification:
- Life jackets. Check for damage and proper fit. PFDs degrade with age and UV exposure.
- Life raft. Have it serviced annually by a certified technician. Don’t defer.
- Flares. Check expiry dates and replace expired flares.
- First-aid kit. Restock anything depleted or expired.
- Fire extinguishers. Check pressure gauges; replace any that are undercharged.
- Bilge pumps. Test electric and manual pumps.
- Ditch bag. Inspect and re-pack — PLB, water, mirror, knife, medications, cash, copies of ship’s papers.
See Marine Safety Equipment for the working framework.
Sails and canvas
Inspect sails carefully. Look for tears, chafe damage, or UV degradation. Minor repairs can wait; significant damage should be addressed now. If sails spent the winter in a damp locker, check for mildew and clean.
Check canvas — dodger, bimini, covers. Winter UV and rain stress canvas and stitching. Re-seal any stressed seams before water gets inside.
Fresh-water systems
Drain and flush the fresh-water system if it has been sitting unused. Winter layup leaves stale water or sediment. Fill tanks with fresh water and run it through all fixtures. Check the water heater (if fitted). Test pressure and flow at all taps.
Documentation
Use commissioning as the working opportunity to organise records:
- Renew vessel registration if expired.
- Update the float-plan template with new crew and route information.
- Verify insurance coverage — many policies have seasonal gaps.
- Note what was done, when, and any items that need future attention. Engine hours, haul-out dates, repairs. The working boat record helps the next surveyor or mechanic diagnose problems faster.
The working final check
- Bottom paint and zincs ✓
- Through-hull and seacock inspection ✓
- Oil and filter change ✓
- Fuel system service ✓
- Coolant check ✓
- Hose inspection ✓
- Impeller replacement ✓
- Rigging inspection ✓
- Battery load test ✓
- Electronics testing ✓
- Safety equipment review ✓
- Canvas inspection ✓
- Fresh-water system flush ✓
- Documentation updated ✓
Closing notes
Pre-season work done right means the entire season is about sailing, not repairing. Spend the working hours in March and earn them back a hundred times over from June through September.
The PNW sailing season runs from late April through September — about five working months when the weather is mostly favourable. Don’t waste a single day of it dealing with deferred maintenance. The working PNW boat owner does the spring commissioning before the first April weekend. The first April weekend is for sailing.
Related: Bottom Paint in Puget Sound · Winter Boating in the PNW · Marine Safety Equipment · Opening Day in Seattle · Cruising Puget Sound