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These guys had no idea about compressors either and it cost one of them big
i just filled up my doubles while pmv is broken
- Thread starter LanceRiley
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Hey man is this you too
Just thought I would share that the Bauer saturation weight, that's from unused to used, is fourteen grams
that's for Bauer P21 filter and the molecular sieve looks and feels as dry as when it went in and nothing wet
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LanceRiley
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no . i dont do that.. why?
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LanceRiley
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Just because it's asia it doesn't mean everyone in asia is stupid. fyi.
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Hey man do you understand that the filter media, molecular sieve, the little clay balls
MUST COME OUT COMPLETELY DRY
otherwise the filter is no longer working
Now people say that this moisture going through your half wet filter into tanks will rust or corrode them
I believe the rust-corrosion in tanks is mainly due to those who don't dry your tanks properly after hydro
Hydros which in Australia we suffer YEARLY means owning a tank fleet without compressor is prohibitive
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And here's the oft linked word, not The word but the Other word
scubaengineer.com
Compressor Filter System Theory - Scuba Engineer
High Pressure Breathing Air Compressor Filtration System Design author:- Stephen E Burton BSc(hons) C.Eng, MIET - Email to:- scubaengineer@gmail.com
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Funny. I believe that rust corrosion in cylinders due to poor filling practice, such as filling in a water tub, or not drying the valve face or fill whip face.
I’ve seen how a single drop of water between the whip and valve face will atomize and fully coat the inside of a cylinder.
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LanceRiley
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ok you misunderstood me...
bauer said... 10hrs..
im using a repack... ive gone thru 12hrs... and is still dry.. no sign of moisture.. now that depends on the atmosphere im sucking on... and what time of the day... i can suck on humid air maybe the repacked filter will be done for in 8hrs... I chose the type of day to use my compressor... with a small compressor like a jr2 . i can feel when its a good day.. air fills seems faster. compared to a humid day .
now i said... i have heard of dive shops pushing it to half wet filters. I didnt say i was doing it.
I think the point being made was that even at the very first signs of moisture, the filter has been in too long. Liquid water should never make it's way into your filtration system, it's only designed to remove water vapour.
Looking at the sieve and saying "it's not wet so it's still good" is not an accurate/safe determination of filter condition.
If you've ever seen a filter fire you'll know what I mean. Liquid water + molecular sieve = bad times.
You're about right though, 10-12hrs is good a P21 filter assuming your ambient temp is around 25°C.
Looking at the sieve and saying "it's not wet so it's still good" is not an accurate/safe determination of filter condition.
If you've ever seen a filter fire you'll know what I mean. Liquid water + molecular sieve = bad times.
You're about right though, 10-12hrs is good a P21 filter assuming your ambient temp is around 25°C.
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