February 2026 Newsletter – Shore Power Over-Current Protection
Photo Essay: Shore Power Over-Current Protection
Over-current protection, or OCP, a subject I write about all too often (most recently here), only because it is...
June 2025 Newsletter – Fan Belt Shedding
Photo Essay: Fan Belt Shedding
Fan belts fulfill a vital role for engines; they transfer energy from the crankshaft pulley to other vital components and...
August 2024 Newsletter – Stainless Steel Raw Water Plumbing
Photo Essay: Stainless Steel Raw Water Plumbing
Stainless steel is undoubtedly the most commonly used boat building hardware alloy, and with good reason... it’s durable,...
July 2024 Newsletter – Through Hull Durability
Photo Essay: Through Hull Durability
I vividly recall working at a yacht club on Long Island, when a vicious nor’easter slammed into the region. Several...
Photo Essay – January 2015
Is your Belt the Right Size
Photo and text by Steve D'Antonio Copyright 2015 SDMC, Inc. The belts used to turn various engine accessories- raw water pumps,...
July 2025 Newsletter – Risers and Siphon-Breaks
Photo Essay: The Perils of an Unvented Loop
Vented loops, also known as anti-siphon valves or siphon-breaks, have served mariners for many years. Their mission...
November 2022 Newsletter “Wiring Lithium-Ion Battery Systems”
Photo Essay: Wiring Lithium-Ion Battery Systems
Fires aboard vessels equipped with lithium-ion batteries quickly capture the attention of the boat building and cruising communities, and...
Photo Essay – May 2015
Photo Essay: Closed Cooling Systems
Text and photo by Steve D'Antonio Copyright SDMC, Inc. May 2015 The closed or pressurized cooling system offers several worthwhile benefits, including...
January 2017 Newsletter
Text and photos by Steve D’Antonio Copyright © 2016
Photo Essay: Boiling Water with Batteries A few years ago the thought of boiling water using battery power would have...
Photo Essay: Hull Strainer
Raw water, after lube oil it’s the very life blood of your engine and generator, supplying it with the medium that absorbs and carries...








