CHANGING YOUR REGULATOR'S MOUTHPIECE, HOSE, COVER AND EXHAUST TEE 

CHANGING THE SECOND STAGE COVER AND RING

There are no tools required for this replacement; all you need is a new cover and a new ring.

- Unscrew the ring and remove the cover to be changed

- Inspect the diaphragm, making sure that it is in place and that there is no dirt or dust inside

- Put the new cover in its place, with the logo facing the right way up

- While holding the cover to prevent it from falling off, screw the ring back on

- Screw on until the end of the thread.

Bonus tip: remember to regularly check that the ring is fully screwed on to prevent it from coming loose.

INSTALLING A NEW MOUTHPIECE

The mouthpieces of our regulators are developed with orthodontists to ensure maximum comfort, but this does not stop them from getting damaged over time and after repeated dives. For this replacement, all you need is the new mouthpiece with its cable tie and a pair of scissors.

- Cut the cable tie and remove the old mouthpiece

- Position the mouthpiece with the bridge on the exhaust side (facing down). 

- Just like on the old one, secure the mouthpiece with the cable tie by putting the head of the cable tie completely on the side, in line with the hose.

For your comfort, don't forget to cut off the end of the cable tie so that it does not get in your way during future dives.

CHANGING THE HOSE AND HOSE PROTECTORS

Salt water and chlorine (for pool training) can damage hose protectors and hoses. You will need to replace them regularly to protect the connections of your hoses. To do so, you will need hot water, a 14mm spanner, a 17mm spanner and if it is the first time you are fitting your regulator, a 4mm Allen key.

- Slide off the protector and remove the hose from the first stage using the 14mm spanner.

- Repeat this step on the second stage using the 17mm spanner

- Tighten the hoses of the second and first stage.

- Do not over-tighten the seals to avoid crushing them.

Little extra tip: if you want to remove the hose protector from the hose, put it in hot water for 2 to 3 minutes to soften it and make it easier to remove. Pass it over the connection. Immerse the new protector in hot water (again, to soften it) and then thread it onto the hose, checking it is the right way round (smaller end pointing down)

INSTALLING A NEW EXHAUST TEE 

It couldn't be easier. All you need is hot water (around 60°C) and your new exhaust tee. Before you start, remember to check the condition of the air expulsion valve and make sure there is no dust or dirt that could interfere with its proper operation. The two tabs on either side must be intact, if this is not the case, take your regulator to the workshop of your Decathlon store.

- Dip the exhaust tee in hot water for 2 to 3 minutes to soften it and make it easier to work with.

- Position it and clip it in place.

Important, there should be an audible "click" once it is fully inserted.

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            ARTICLE WRITTEN BY

            erwann-subea-product-engineer
            Erwann, Subea Product Engineer

            I am a product engineer at Subea for diving regulators. I have been diving since I was 8 years old and I have all my FFESSM certifications up to CMAS One Star instructor as well as PADI Divemaster.

            I am also passionate about underwater photography, and my work is guided by a desire to make this sport accessible to all.

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