Synthetic chamois in bottom of scrubber ?

[Pierre Farrugia]

http://www.btinternet.com/~madmole/divemole.htm

Originally Posted by Madmole

I also have cut circles of synthetic chamois, which I leave at the bottom of my scrubber under the spring base to absorb moisture here rather than let it go up into the scrubber. I purposely leave the down tube of the scrubber un-insulated so condensation takes place there!

Was reading through Madmole site and saw this info about putting synthetic chamois in the bottom of scrubber to absorb any moisture found there! Anyone here tried it ? What are your views about this ? DO you buy oxygen clean synthetic chamois ?

[turbanator]

Originally Posted by Pierre Farrugia

http://www.btinternet.com/~madmole/divemole.htm





Was reading through Madmole site and saw this info about putting synthetic chamois in the bottom of scrubber to absorb any moisture found there! Anyone here tried it ? What are your views about this ? DO you buy oxygen clean synthetic chamois ?

Marting suggested this on my Kiss course, but not disks as suggested above.
He said get a trek towel, roll it into a sausage and hold it together with cable ties, then put it at the bottom of the scrubber.

[wreckweasel]

A few of us have this on our KISS's.... it works a treat.

Jim Coates originally came up with the idea....

[Pierre Farrugia]

Originally Posted by turbanator

Marting suggested this on my Kiss course, but not disks as suggested above.
He said get a trek towel, roll it into a sausage and hold it together with cable ties, then put it at the bottom of the scrubber.

What is a trek towel ? In Malta we are not so sofisticated How can you know that a towel cloth is siutable for oxygen enviorment!

[ray]

Hi. I tried a disc cut in the bottom of my scrubber, on my first try with the diisc at Waswater to 47 metres I spiked my set and the set point rose till the alarm went off, I was diving with a chap on OC who had never dived with a rebreather buddy, and although he was asked not to he went down to fast, so I ditched him and went down at the proper speed, ok a dil flush cured the problem but I couldnt be sure what caused the spike , me, the decent, the set, or the absorbant disc?.

I have never had a problem before with the set point, except my first ever dive with my new Inspiration at Capenwray, I was with Andy my Instructor, tried changing set points back and forth, then we came back to the surface turned the handset's to change slave and master and the thing was ok from that point and has been except for this one episode since.

Still there was'nt any moisture in the scrubber, so it did work, but I think im to windy to try it again, maybe later when the learning curve is'nt so steep

[Duncan Price]

Originally Posted by Pierre Farrugia

Was reading through Madmole site and saw this info about putting synthetic chamois in the bottom of scrubber to absorb any moisture found there! Anyone here tried it ? What are your views about this ? DO you buy oxygen clean synthetic chamois ?

I bung in a couple of tampons in the base of the scrubber (don't use applicator ones like what Rick Stanton did). Grade of tampon determined by anticipated dive time and depth.

[turbanator]

Originally Posted by Pierre Farrugia

What is a trek towel ? In Malta we are not so sofisticated How can you know that a towel cloth is siutable for oxygen enviorment!

I think it may be a trade or generic name for synthetic chamoises.
It was decsribed as 'those little towels that absorb a lot af water'

As for pure O2 compatability, I tend to side with the the DIR crowd and that it is a lot of toffee.
We have to pay to change all of out little o-rings to from butyl to nitrile rubber but seem to forget that the inside of our HP hoses are 'normal' rubber.
As are the hoses on your RB.
And it will be damp most of the time, that's why we're putting it there

r
Paul

[wreckweasel]

Not quite, the towels jim and I are using are those blue ones you can buy from outdoors shops, they're super absorbent..

As for O2 clean .... <sniggers> what!? lets be honest, the loop is only at ambient... and the highest PO2 you're likely to see in it is only ~2bar.

[turbanator]

Originally Posted by wreckweasel

Not quite, the towels jim and I are using are those blue ones you can buy from outdoors shops, they're super absorbent..

They're the ones I think Martin meant - Trektowels??

Originally Posted by wreakweasel

As for O2 clean .... <sniggers> what!? lets be honest, the loop is only at ambient... and the highest PO2 you're likely to see in it is only ~2bar.

Just to play Devil's advocate here, wasn't the fire on Apollo 1 in a 0.3bar pure O2 atmosphere ? IIRC, there was a source of ignition in the form of burning wires though, so us Kiss divers should be ok

[Duncan Price]

Originally Posted by turbanator

Just to play Devil's advocate here, wasn't the fire on Apollo 1 in a 0.3bar pure O2 atmosphere ? IIRC, there was a source of ignition in the form of burning wires though, so us Kiss divers should be ok

It was 1 bar.