Plumbing glossary: O

It always feels great adding fresh words to your vocabulary, which is why we publish a brand new plumbing glossary every week.

This week, it’s time to learn some O-words.

O-Ring – round rubber washer used to create a watertight seal

ODOutside Diameter – the diameter of a pipe measured from the outside edge

Oakum – loosely woven hemp rope that has been treated with oil or another waterproofing agent, which is used to caulk joints

Oil powered – a water heater that uses oil for its fuel source

Operating cost – the cost of running a water heater for a given time period

Orbital weld – a circumferential, full fusion weld used to join together two lengths of tubing

Organic matter – plant and animal substance created by living organisms

Outlet – the opening through which water exits the pump

Overflow tube – the vertical tube inside a toilet tank that directs water into the bowl in case the ballcock malfunctions

Ozone – an unstable form of oxygen, which can be generated by an electrical discharge through air or regular oxygen – it is a strong oxidising agent and has been used in water conditioning as a disinfectant

If you’d like to continue to brush up on your plumbing lingo, don’t forget to follow us on Facebook and Twitter to be the first to know when our glossaries are released.

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