4: Residual Second Hand Value
At sometime in the future you may wish to sell your unit. You may wish to retire from diving or you may wish to upgrade to another unit. At this stage it is important that you have a unit that is attractive to a buyer With a market leader unit, people are familiar with the name and comfortable purchasing a well known brand name second hand. This was yet another deciding reason for my purchase of the Inspiration unit.
5: How many units have been sold?
Find out how many units have been sold and the history of those units in service. Reliability of electronics, reliability of parts, work of breathing, comfort, surface attitude, its buoyancy characteristics, and manufacturing failure points are all considerations.
The best test for how these things stand up is for the units to be out there and dived by the Public or the Military.
If a unit has been dived by a large number of people you will get a better idea of its performance. If you are diving one of the first 20 units produced by a company then in all likelihood you are a guinea pig.
6:When to Buy
In order to secure the deal, the manufacturer / sales agent will promise you the unit within a week. That's almost impossible. If you purchase at the beginning of the summer, be prepared to wait. Most people buy at Easter at the beginning of the diving season. I would not do this. Firstly everyone is doing the same thing, so you may end up having to wait longer than normal. Secondly there is nearly always a Dive Show around October. Even without visiting the Dive Show, you can avail of the Dive Show Discounts. I was able to purchase my unit, approximately £1000 cheaper than the retail advertised price, due to a show price special.
Due to the fact that I ordered the machine in October, the end of the dive season, I had the Inspiration unit delivered to my Instructor in 5 weeks from the date of order. I had my training completed by the end of Jan 2010.
7: The cost of the Unit and approximate numbers that have been manufactured.
The figures below are in some cases best guess. For exact details call the manufacturer and ask them. Contact info at the bottom of article.
Fully Closed rebreathers.
Ambient Pressure Diving
Inspiration with Vision Electronics + Trimix Software £5000.00. Second Hand Classic Units @ £2500.00. Units produced: 5000 plus.
Megalodon £5000.00 Second hand unlikely. Units produced approximately 200.
8: Running Costs and Maintenance.
The running costs of a Rebreather are roughly around the same as a diver on Open Circuit, however for Divers diving on Trimix, it can be up to 90% cheaper than the divers on Open Circuit. A 20kg tub of Sofnolime is approximately £70 delivered. This will give you around 8 fills. With a scrubber use of 3 hours, you are looking at 24 hours diving per tub. A set of batteries via the internet, will cost £5.00. On average every 3 to 4 months. Be prepared to part with at least £500.00 for your training. (2 days class room and 8 hrs under water)
This is is a list of useful websites.
1. www.nwdesigns.com/rebreathers The original rebreather web site.
2.http://www.bishopmuseum.org/research/treks/palautz97/lgrb.html One of the most informed rebreather divers out there is Richard Pyle. His information and advice is some of the very best.
3. www.iantd.com IANTD is the largest and oldest technical agency and teaches nearly all the rebreathers out there. 5. www.ambientpressurediving.com Inspiration Rebreather site
4. http://www.electricfilm.com Kevin Jurgensen. Site information on MK15 Cis Lunar maintenance and Inspiration additions such as the Hammerhead.
5. www.rebreather.com CCR2000 website . www.steammachines.com Steam Machines Prism rebreather.
6. http://divenet.com/divematics Tracey Robinette.
7. http://www.jetsam.ca/index.php Kiss rebreather web site.
8.www.halcyon.net. Halcyon rebreather web site.
9. http://www.customrebreathers.com Megalodon rebreather web site.
10. http://www.rebreather-azimuth.com/rebreather-engl.html Azimuth rebreather web site.
11. http://www.btinternet.com/~madmole/divemole.htm. An excellent site on all things Inspiration.
12. http://www.rebreather.org.uk/ Web site of Bob Howell. Bob is a very experienced Rebreather diver who makes all sorts of high quality additions for Rebreathers.
"These views are the personal thoughts of the author (written at 12.30am) and must / should not be a substitute to proper training"