SUBEA 76cm SCD braided Hyperflex SCUBA diving regulator hose neon pink

To not overtighten the first stage. First stages are usually made of chrome-plated brass, a soft alloy. Overtightening can damage the first stage. The O-ring on the hose is used for watertightening purposes.
On the second-stage connection, there is a cylindrical male part inside with an O-ring for watertightness.
Use a silicone grease to lubricate the seals and increase their lifespan.

Repeated pressurisation of the regulator and external cracks will made the hose more fragile. This type of wear, usually invisible, affects the performance of your regulator. At the worst, your hose will end up by breaking, usually at the point where it is crimped.
Regularly check your hoses and replace them if cracked.
Replace your hoses at least every 5 years.

SUBEA-TRIBORD advises you to service your regulator every two years and to make a visual inspection at least once a year. This two inspections must be made in a SUBEA-TRIBORD certified workshop.
A service is also recommended after a particularly intensive season (more than 100 dives), or after a long period of inactivity.
During this inspection, your hoses will be checked and replaced if necessary.

Never use solvents or hydrocarbon-based products to clean or lubricate the regulator yourself.Never use spray cans, because the gas propellent can attack the plastic.
Use a silicone grease to lubricate the seals and increase their lifespan.