15 Essential Steps to Proper Scuba Regulator Maintenance

Let’s face it, your regulator is your lifeline whilst scuba diving and it’s essential that it is in excellent working condition at all times.

Follow these simple, but essential steps to proper regulator maintenance – if you look after your regulator pre and post dive, your regulator will look after you 😀

Pre-Dive Regulator Maintenance (also advisable before packing your gear to go on holiday!):

    1. Ensure that the o-ring on your first stage is not leaking (if it is, check seating of first stage and inspect o-ring for damage. Replace it if damaged);
    2. Take a few breaths from your regulator and octopus – make sure nothing free flows;
    3. Check that the mouthpieces are not torn or damaged (if so, replace);
    4. Check the second stage metal fittings are not corroded and that the housings are not cracked;
    5. Check the gauges are working;
    6. Check your computer battery is still showing sufficient bars/power;
    7. Check the hoses and slide the hose protectors back and check underneath them to make sure there are no cracks and that there is no corrosion on any of the metal fittings;
    8. Finally, disconnect the regulator from the cylinder, replace the dust cap, inhale on each regulator forcefully and hold a vacuum. Each regulator should let in either a very tiny trickle of air or no air at all.


If anything is damaged, worn, torn or broken, battery reading low – get your local dive centre to replace it.  If anything is not working correctly (free-flowing, corroded, gauges not reading properly, have it serviced!).  Best of all; remember to have your regulator serviced annually – not just when something is wrong with it!

Post Dive Regulator Maintenance:

  1. Rinse your regulator as soon as possible – whether at the dive centre or as soon as you get home;
  2. Always make sure your dust cap is dry before you put it securely back on the first stage prior to washing it;
  3. Make sure you use clean water (and the correct rinse tank) to wash your regulator;
  4. When rinsing your regulator, do not press the purge valves on your second stage  (this will allow water to enter the system and rust it from the inside – where you can’t see it!);
  5. Rinse well, to ensure water runs through the mouthpieces and out of the exhaust diaphragm;
  6. Rinse the fitting that connects to your low pressure inflator by pulling the cover back and forth whilst holding it under water;
  7. Hang it up to dry (not in the sun!), gently shake any excess water out of the mouthpieces.  Leave it hanging up somewhere dry and cool until your next dive.

If you are having a problem with your regulator or need to have your regulator serviced, please let us know – we will gladly do this for you at Indigo Scuba.