http://www.atlimp.com/rguman.pdf (omline manual thanks to Tom Rose!)
Here are a couple of pics of the greatly
modified RGU-2 scrubber that didnt make it into the first posting.
The new gray exhale tube extension and white nut do several things:
* Redirects the exhaled gas out thru the newly 'ported' bottom cap and directly into the single counterlung.
* Compresses the pellet charge compaction spring (black), and
* Secures the bottom cap in place.
The sealing o-ring, which formed the critical water-tight seal in the original RG-UF/M refillable scrubber is no longer
truly required. This because positioning the RGU-2 scrubber inside the counterlung eliminates the need for a critical
watertight seal. This eliminates a common critical failure mode from the original RG-UF/M refillable scrubber
design, which was previously exposed to the ambient water. .
The top and bottom screens are presently made of .006 in. thk. woven stainless steel wire.
Later, these will be replaced by formed, .008 in. thk., stainless steel sheet, with .020 in. dia. perforations
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