Elias knew the drill. Most cleaners were harsh enough to melt your skin off, and he wasn't about to dump poison into the very water that fed him. He spent the evening scouring the catalogs until he found it: a biodegradable descaler.

You can buy from several retailers, including: Walmart : Currently offers a 1-gallon bottle for $55.

"She’s choked, Elias," the harbormaster sighed, leaning against a rusted piling. "Calcium, barnacles, and three decades of salt. She’s running hot enough to fry an egg on the casing."

: Stocks various sizes, from single gallons to larger cases.

Captain Elias stood on the docks of Port Hallow, his boots clicking against the weathered wood. His pride and joy, The Sea Witch , was wheezing. For thirty years, she’d cut through the Atlantic like a hot knife through butter, but lately, her engine groaned under the weight of a thousand voyages.

Elias turned the key. The engine didn't just start; it purred. The vibration that had rattled his teeth for months was gone, replaced by a smooth, rhythmic thrum. He untied the lines and headed for the open sea, the Witch feeling twenty years younger, her heart finally beating clear again. To get more features, update your settings