Vol. V · No. 2 Issue 23 May–June 2026 · Port Townsend, WA · Boat Haven, Shop 7 · (360) 385-6211
BH WT
The Bilge & Tankage Quarterly A Journal of Marine Wet Trades · Published by Boat Haven Wet Trades Co.
EST. 2021 ISSN 2769-3104
Vol. V · No. 2 · Issue 23 · May–June 2026 · $14 · ISSN 2769-3104

The Bilge &
Tankage
Quarterly.

A working journal of marine wet trades, edited and printed at Shop 7, Port of Port Townsend Boat Haven, 2601 Washington Street, Port Townsend, Washington 98368. Six issues since the long winter of 2021.

Contents

In this issue

p. 03
Features
A Schenker on a Lyra 48: Greta's freshwater refit A 22-foot waterline ketch becomes self-sufficient at anchor — narrated by the apprentice who plumbed her, with a closing first-person aside from the watermaker tech.
14
A Type III for a Bristol Bay gillnetter F/V Cape Fox, 32 feet by 13 of beam, gets a 38-gallon holding tank, a deck pumpout, and a hardened overboard discharge plug — written from the haul-out chit log.
24
Electric pumpout on a Hunter 36 Compliance with the 2018 Puget Sound NDZ for a live-aboard whose owner spent the winter at the Boat Haven transient slips and never planned to leave again.
30
M/V Wyman: a black-iron-to-aluminum tankage swap A 1947 bridge-deck cruiser named for the wartime DE-38 (commissioned at Puget Sound Navy Yard, 1 September 1943) loses 230 lb of rust and gains 38 gallons of useful capacity.
34
A Spectra Newport 400C for a charter sloop A Hinckley B40 chartered out of the Salish Sea picks up the most-asked-for upgrade of the 2026 season — and, with it, the schedule headache of bi-annual membrane pickling.
38
Departments
Daybook Four entries from the shop calendar: pumpout week, the February cold-snap burst tank, opening of haul-out season, and a December permeation case.
41
Tankage Notes On cross-linked polyethylene bladders and the persistent question of aluminum vs. stainless waste tankage.
46
Shop Drawings Three reference plates: a Type III MSD layout, a Spectra skid mount for the Quimper-class sailboat, and a Lavac vacuum head schematic.
48
Letters to the Trade From a Bristol Bay deckhand on hose permeation, from a houseboat resident on Type I MSDs in the NDZ, and from a Port Hadlock charter operator on watermaker pickling intervals.
50
Reference
Marine Sanitation Devices · A revised primer USCG 33 CFR 159 Types I, II, and III, and what each one is and isn't allowed to do inside the Puget Sound No-Discharge Zone after 10 May 2018.
52
Watermakers · A buyer's reference Energy-recovery vs. high-pressure systems, GPH curves, membrane chemistry, and the failure modes that bring a unit back to the shop.
58
Tankage · A buyer's reference Materials, baffles, vents, gauges, and ABYC H-22 / H-23 in the language of a working shop.
62
Bilge Management · A buyer's reference Centrifugal vs. diaphragm pumps, high-water alarms, and why we keep coming back to the Whale Gulper for the second stage.
66
Of the House
Editor's Note & Masthead Why we publish a trade quarterly out of a six-person plumbing shop, and who is responsible for the issue you are holding.
05
Classifieds & Schedule Book a haul-out slot for August through November; book a winter refit for the November–March slow season.
70
Visit the Shop Shop 7 at the Port of Port Townsend Boat Haven, with directions, hours, transit, harbormaster cross-reference, and parking.
73
Subscriptions & Service Rates Print and digital subscriptions, plus our published shop rates for refit work, by trade and by vessel length.
75
Careers — Apprentice & Journeyman We hire from the Northwest School of Wooden Boatbuilding and from the trades, and we keep an open file for 4th-period plumbing apprentices.
77
Colophon Typography, paper stock, accessibility statement, and the editorial credits for this issue.
79
From the Shop

A note from the Editor — Marcus Greve

We publish six issues a year on a paper that arrives by the half-ton pallet from a press in Tacoma. We do it because most of the trade literature on marine plumbing — Calder, Casey, Nigel Calder again, the various manufacturer-issued application notes — was written for a continent away from us, and because the work itself, on the haul-out yard at the Boat Haven, looks different on a 47°F February morning than it does in the photograph on the manufacturer's catalog page. The journal is the record of how it actually went, and it is the only document we ourselves trust at the start of a difficult refit.

We are six people: a master plumber, three journeymen, an apprentice, and an office. The shop sits at the south end of the boatyard, between SEA Marine and the haul-out pit, in Shop 7 — the long galvanized building behind the Travelift. We work only on vessels. We do not do houses, and we do not do shore-side plumbing for marina restrooms; the trade is wide enough without us drifting outside it.

If you have a project to bring us, the Classifieds desk is the place to begin. If you are reading us for the first time, the Features section will tell you more about how we work than any About page can. — M.G., editor.

Where we are

The shop, the yard, the waterfront

p. 04

The Port of Port Townsend Boat Haven sits on the south side of the Quimper Peninsula, on the inside of Point Hudson, six minutes by foot from the ferry terminal that connects the town to Whidbey Island via the Coupeville run. It is the largest haul-out facility on the Olympic Peninsula. The Port operates a 150-foot, 330-ton Marine Travelift; SEA Marine, our neighbor to the north, has a smaller 75-ton lift. We share the yard with sixty-some other marine trades — riggers, sailmakers, engine shops, electronics shops, the shipwrights at Haven Boatworks, and the spar-and-rig people on the back side of the pit. The Port of Port Townsend has been operating the boatyard, in one form or another, since 1925.1

The town of Port Townsend itself has been a working port since 1851 and a designated wooden-boat town since 1976, when the Northwest School of Wooden Boatbuilding moved into its present yard in nearby Port Hadlock.2 The September Wooden Boat Festival, run by Northwest Maritime out of the Northwest Maritime Center at 431 Water Street, is the second-largest wooden-boat festival in the world. Most of our customers find us because they came to the festival, walked across Sims Way to the boatyard, saw what we do, and remembered six months later when something failed.

We are listed on the boatyard tenant board outside the Port office. To find us, you walk past the Travelift pit, turn left at the spar yard, and look for the long galvanized building with the red door — that is Shop 7. The bay door faces the chained-link side toward the strait. The office is just inside, to the right of the door, behind the chart table.

References

  1. Port of Port Townsend · Boatyard — capacity and Travelift specifications.
  2. Northwest School of Wooden Boatbuilding — accredited two-year boatbuilding program in Port Hadlock, WA.
  3. Wikipedia · Port Townsend, Washington — town history.
  4. Wikipedia · Quimper Peninsula — geography.