Hello all,
New around here ; I hope this section is the right one.
I’ve been diving trimix recently but the nearest dive shop that fills trimix is a few hours away. So here i am : looking into doing my very own blend!
From what I gathered on this post, there are 2 main low tech ways and I’m not too sure which one to go with. I'm not really looking for a short and efficient fill time ; but rather for a simple, compact, not too expensive setup.
Any advice between the 2 setup below ?
New around here ; I hope this section is the right one.
I’ve been diving trimix recently but the nearest dive shop that fills trimix is a few hours away. So here i am : looking into doing my very own blend!
From what I gathered on this post, there are 2 main low tech ways and I’m not too sure which one to go with. I'm not really looking for a short and efficient fill time ; but rather for a simple, compact, not too expensive setup.
Any advice between the 2 setup below ?
- Mini air compressor to fill in helium and then top up with nitrox in a dive shop
- Plus : fast, rather cheap with a simple compressor
- Unclear :
- Blow by : Assuming I will never fill above 120bars of helium, what % of blow by should I expect?
- I read the air quality of the air compressor might be an issue, but I don’t understand how it is different from the standard air fill we get in any dive shop
- Booster to fill in helium and then top up with nitrox with the booster
- Plus : setup compact, can top up nitrox as well from a tank
- Unclear :
- Drive gas consumption: can I expect to fill in a twin set with helium, using another twin set of air as drive gas?
- Scavenging capacity : what is the left over in your experience ?