Imported post
OK, let's see how good you guys really are!
[Best examiner voice]
An electric (12v) compressor is rated at 45 litres per minute (flow rate). This compressor is good enough to supply air to a diver down to 7m, after which the compressor can't supply enough.
1) A second compressor is rated at 35 litres per minute. How deep should this compressor be able to supply?
2) If my SAC is 25, how deep should I be able to go on this compressor?
[You may now begin...]
What's this all about? Well, last week I spent an excellent day in Swanage on the Halsewell wreck with some of the Seadart team (Hi Bob and Chris!). These guys have some great gear (check out Seadart website), including a surface air supply.
In the spirit of DIY, we're both investigating home-builds. Hence the need for some baseline figures, so we can compare the benchmark (the commercial product) with whatever 12v compressors are out there.
Can anyone help?
OK, let's see how good you guys really are!
[Best examiner voice]
An electric (12v) compressor is rated at 45 litres per minute (flow rate). This compressor is good enough to supply air to a diver down to 7m, after which the compressor can't supply enough.
1) A second compressor is rated at 35 litres per minute. How deep should this compressor be able to supply?
2) If my SAC is 25, how deep should I be able to go on this compressor?
[You may now begin...]

What's this all about? Well, last week I spent an excellent day in Swanage on the Halsewell wreck with some of the Seadart team (Hi Bob and Chris!). These guys have some great gear (check out Seadart website), including a surface air supply.
In the spirit of DIY, we're both investigating home-builds. Hence the need for some baseline figures, so we can compare the benchmark (the commercial product) with whatever 12v compressors are out there.

Can anyone help?