Air, Nitrox and Tri-Mix fills.
Air fills are $11.00 per fill or buy a concession card of 10 air fills for $100 (that’s a free fill)
Enriched Air Nitrox fills for Enriched Air Nitrox certified divers.
Enriched Air Nitrox to 32% is $17 per fill or buy an EANx concession card of 10 for $150.
Enriched Air Nitrox to 40% is $20 per fill or buy an EANx concession card of 10 for $180.
All tanks are pressure checked and topped up if needed to their working pressure when you pick them up to ensure they are nice and full.
If we hear your O ring leaking we will change it for free. But if you know it’s leaking, just let us know. We can sell you spare O rings and the tools to safely remove them – just ask.1
We are able to offer a relatively quick turnaround time for our Nitrox customers too with our dedicated compressor. Not all staff are qualified to do this, so our qualified Gas Blenders must be on site.
We are also able to deliver O2 clean partial pressure filling for our tech diving community.
O2 is $0.04 per Litre plus a $10 fill charge for Partial Pressure Blending for our technical diving customers qualified to use Enriched Air Nitrox above 40%.
Pure Air: Not only do our staff complete the Air Fillers course to be compliant to be able to fill tanks in New Zealand law, but our air is tested quarterly by NZUA. A third party EPA sanctioned test body, in line with the Worksafe regulations to ensure that we comply and supply you with air fills that are safe for breathing underwater.
Our compressor’s air filtration systems exceed the minimum requirements, giving you air that you can trust and ensure we help your cylinders last for years.
How full is full?
Scuba cylinders and valves each have a working pressure, we have to fill to the lowest of these pressures.
We do prefer you give us more time to fill your cylinders as the process creates heat. If you give us an hour or so, the gas in your cylinder can cool down, so when you come to collect it, we can top it up to the cylinders and valves working pressure rating. Meaning a good air fill.
Why does this happen? As gas is transfered into your cylinder, the gas molecules are moving around quite fast and create friction as they bounce off of each other and the internal walls of the cylinder. This creates heat and therefore a higher pressure.
Allow the gas in your cylinder to sit for an hour or more and the molecules slow down and cool down. The result is as the temperature drops, so does the pressure in your cylinder. So a tank filled to 225 bar may drop to about 200 bar after an hour or so.
Now you go for a dive and the water is colder than the air temperature, the pressure in the cylinder will drop even more before you even breathe it. So your 225 bar at 20 degrees C may drop to 205 bar in 18 degrees C water.
Are your tanks been brought in from outside of New Zealand?
It sounds like a trick question, as all bottles are made outside of New Zealand. Faber is from Italy and Catalina is from the U.S.A. But with out the LAB number or US/ISO number we are not allowed to fill them.
In New Zealand all our cylinders have to have a LAB number or an UN number in conjunction with an ISO number. This means when the distributor orders tanks for New Zealand, they get tested and stamped with a LAB number and put onto the Worksafe cylinder register. So a cylinder coming in from overseas usually cannot be used. We are at Dive Now allowed to give qualified cylinders a LAB number if they match a specification on the register.
Our valves need a burst disc which is an over pressure device that fails if the tank pressure gets too high. This stops the tank failure in a catastrophic way causing damage and injury.