Daystate LC-110, 12 hours, Coalescing/Condensate Tower Picture

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Hi all, not sure there is any significance, but I at least wanted to share. This is how my condensate/coalescing tower looks after 12 hours of use. My use is 2 minutes of run time, 5 minutes or less of top-off of a 90cu-in tank, 2 minutes cool down. The following day the compressor is run for 2 minutes to blow out any collected moisture. Oil was changed at 5 hours and will be changed again at 15 hours. I have/will only use Coltri CE-750. What looks like "particles" is actually bubbles both large and small because the compressor was ran before this image was taken.

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The setup, in my conditioned basement, on the unfinished side -- I gave my father one of the Ninja 90 cu-in tanks (the one laying flat):

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I top off from ~3,000 PSI to 4,500 PSI on my Ninja 90 cu-in tank. It takes about 5 minutes or less depending on tank/ambient temperature. I don't use a run meter I just use a hash mark on my 66 & 110 punch block cabinet that I use like a dry-erase board with a dry-erase marker to indicate 10 minutes. I figure ~2 minutes run time, ~5 minutes top-off, ~2 minutes run-time adds up to a "fuzzy" run time of ~10 minutes which means I'll end up replacing the oil probably an hour sooner than I would if I were accurately tracking true runtime.
 
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90 cu-in from 3000 - 3500 PSI is usually 5 to 7 minutes, depending. I'm not trying to trick anyone or anything, it's why I just do my ~10 minute approx hash mark. Good enough for me and the ~2 minutes warm up (approx), ~5-7 minutes (approx) fill, and ~2 minutes cool down.

I don't really shoot tethered so when I can no longer fill to above 200 bar it's time to fill the tank. Sometimes I'll top-off at 3500 PSI.

Every time I have timed it is 5 to 7 minutes to top off. *shrugs*

My bottle is 90 cubic inches, not 90 cubic feet in case it was misread.
 
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How do you top off a tank in 5 minutes?
As to your picture. It appears to be dark which might be oil residue. It also looks like there are pits or chips which I would have no clue as to how that would occur. What are your thoughts.
Click to expand...

Honey-looking stuff is the CE-750, so the tower is doing it's job as an oil and water separator.

"Pits/chips" are an optical illusion from the camera, it's actually bubbles both large and small, that formed and did not yet pop in the oil and water sheen. I had ran the compressor before taking the top off and taking a picture. It's super smooth in there and I can see my reflection on the sides and bottom. No actual surface damage anywhere. I used a flash on the camera and it's illuminating the bubbles at different angles making it look like there are gouges but it's 100% smooth.

If you look closely you'll see the bottom is actually being reflected off the sides of the cylinder like a mirror.
 
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Ok. Some how I got the idea you were filling from 3000 to 4500 psi. Not to 3500. That makes sense.
I think if you use your compressor as you have out lined you should be fine. I ran mine to 4000 I think it’s the last 500 psi that kills those compressors. I’m not even certain I’ll run my Alkin to 4500. No need to just fill a little more often 
 
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LMNOP, your coalescing tower looks to be in excellent condition. If you wipe it out with a paper towel it will look like new. The few oil and droplets at the bottom mean it's doing it's job. Your 5 minute run time is correct for a 90 cubic inch tank. My Daystate LC-110 took about 25 minutes to top off my 6.8 liter tank from 3 to 4.5K psi. Someone might be thinking your 90 cubic inch tank is a 9 liter tank? A 9 liter tank is 550 cubic inches inside volume. My 6.8 liter tank is 415 cubic inches, which is why it takes 25 minutes to top off with the LC-110.
 
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