Sieve gets the air first. Generally recommended to use more Sieve than Carbon, generally about 2/3 to 3/4 of the filter housing devoted to Sieve. Don't let the Sieve get saturated with moisture, or the oil and other impurities, odors, etc that were captured in it and the Carbon will be displaced by the water and end up right back in your breathing air in high concentration. Inspect often, and if you have an hour meter you can begin to get a feel for your filter life.tripplec wrote:When setting up a bulk filter, does the incoming air pass through the sieve first or the carbon. Want to make sure I understand the link correctly.
Easy visual inspection of filter media is really only convenient with the Lawrence Factor brand filter cartridges which are clear plastic cylinders packed with media and a moisture indicator strip. You external indicator will probably give you a blue outer ring when moisture levels are low and normal in the filtered air. If it's like the ones I am familiar with, the blue will fade to off-white or tan when the filter media is getting too moist. The CO indication will probably darken with presence of CO (and possibly also with time), but please read any instructions you may have with that item for details.tripplec wrote:Email me! firstname.lastname@example.org. During inspection can you tell by looks if its close to the end of life? Everything is home made and I have no info on the compressor so its all guess work at this point. My filter setup will be like the diagram in the link posted and I have the eye glass with h2o/co indicator but dont know that I will trust it.
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