Sounding Rope with Metre Markings — IMPA 37 Nautical Equipment

A sounding rope is used on board cargo ships, container vessels, tankers, bulk carriers and offshore support vessels to measure liquid levels in ballast, fresh water, fuel and cargo tanks. It is deployed together with a sounding lead or sounding tape weight: the lead is lowered on the rope until it touches the tank bottom or liquid surface, and the wetted or marked section is read off to determine the depth of liquid remaining. Accurate soundings are essential for stability and trim calculations, bunker surveys, ballast management and pollution prevention, and a rope with clearly marked metre graduations removes guesswork from the reading and speeds up daily tank gauging rounds.

The rope is available in two constructions — a traditional cotton rope and a stronger polyester rope — both selected for good wet strength, low stretch and resistance to rot, oil and salt water. Markings are applied at every metre with a printed metre number, so the officer or deck crew can read the sounding directly without a separate tape measure. Standard finished lengths are 20 m, 30 m, 52 m and 100 m, and custom lengths can be supplied to suit the tank depth and the vessel's sounding routine. The rope is typically supplied with a spliced or whipped end and a thimble or eye for attaching the sounding lead, and is packed for safe stowage in the ship's store or pump room.

ALL-K MARINE Ship Store (ALL-K MARINE CO.,LTD) is a China-based wholesale and retail supplier of IMPA-coded marine stores and ship supplies, covering the full IMPA range from stock with supplier QC inspection on every batch. We offer competitive wholesale and retail pricing, 24-hour quotations, and reliable worldwide shipping through international freight forwarders. Delivery to your local ship agent can be arranged on request, and we are happy to quote for single vessels, fleet contracts or chandlery stock orders.