What are the prime factors leading to regulator malfunctions?
Poor maintenance and lack of fundamental knowledge.
How often should your regulator be serviced?
Once a year, more frequently if heavily used.
What is the most common type of regulator used today?
A single hose, two stage regulator.
What pressure range does the first stage reduce tank pressure to?
110-185 psi above ambient pressure.
What basic maintenance should you do for your alternate air source?
Rinse with fresh water after diving and store away from heat sources out of the sun.
What are the four types of alternate air sources?
1) A.I.R. Il (Alternate Inflator Regulator)
2) Octopus Second Stage
3) Spare Air
4) Pony Bottle
How do you maintain an alternate inflator regulator?
Rinse with fresh water. Disconnect and reconnect unit from the low pressure air supply hose while submerged in fresh water, then take the unit out of the water and activate the purge button and power inflator to flush all water out of the mechanism.
What do you never want to do with an alternate air inflator regulator?
Never connect the unit to it's low pressure hose when the hose is not pressurized, if the unit has salt water in it.
How much air is in a "Spare Air" tank?
1.7 or 2.7 cubic feet depending on the model.
What are the five "Spare Air" reminders?
1) Keep system fully charged, being careful to fill slowly without overfilling.
2) Always pressurize before entering the water.
3) Don't over tighten or over extend valve threads when turning on or off.
4) Always store depressurized with valve off.
5) Never use solvents or chemicals. You may use non-toxic silicone spray to lubricate o-rings and threads of the refill adapter and pressure indicator.
How much air does a pony bottle hold, and how much does it weigh?
6-30 cubic feet, 6-8 lbs.