Gx filter is here

I would not hold pressure in the filter, as then you would be leaving moisture that has migrated to the bottom of the filter, in the system. The whole point of the filter is to both filter and seperate moisture. Leaving it in, would overload the moisture absorbing beads a lot quicker. I'm assuming that according to GX advertising, the beads could convievably last a year, leaving moisture in the system would certaily shorten that lifespan immeasurably.
 
I would not hold pressure in the filter, as then you would be leaving moisture that has migrated to the bottom of the filter, in the system. The whole point of the filter is to both filter and seperate moisture. Leaving it in, would overload the moisture absorbing beads a lot quicker. I'm assuming that according to GX advertising, the beads could convievably last a year, leaving moisture in the system would certaily shorten that lifespan immeasurably.

When would pressure be left in the filter? I guess if you're tethering to the compressor, but you'd need to depressurize filter before restarting the compressor.
 
I took some of the earlier discussion of a pressure retaining valve to mean the pressure would be pressurized for the next fill, thus reducing the time to start filling the gun.

The output is one way and with a ~2000 psi minimum open. Youd only be saving the air in the hose from filter to tank, the filter would need to be emptied before you could restart compressor.
 
I saw a video with Joe B and Bill from TF and they were talking about quickly bleeding the water out of the bottome of the filter, ... quick enough (if you can even do it) keep some pressure in the filter body.
Venting the line to the gun would not drain the filter below ~1800 pisi or so. I dunno, if it's possible, I haven't tried it yet, but I'd prefer to just drain the thing.
I was curious enough to buy one for one of my compressors and I'll give it a go.
 
All I know is when I release the lower pressure valve on the filter first it blows out all the pressure from the filter, but there is no moisture that I am getting. Then when I open the valve on the compressor itself to release the pressure from the compressor, there’s no pressure at all, so I am assuming that all the pressure is coming out of the lower filter release valve??
 
Ok, I tried the procedure suggested in the video. You can absolutely drain the moisture and not completely de-pressurize the filter itself. It is pretty easy to do. My only concern, is it also pulls the moisture from the bottom of the pump over thru the line and out the bottom of the filter. I'll have to experiment more, but I think it's a good idea to simply let er blow and clear out as much moisture as possible. The one minute added to a fill is just not enough for me to worry about.

For the record, I DO get moisture out of the bottom of the filter, not a huge amount, but some.
 
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My CS4i with GX filter setup.
I did take 2 month order to delivery for that filter.

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