This is a 10 yr old box.. never an issue with it. As said, it is in the garage and on the way out the door to my truck so it just holds truck drinks and some over flow during holidays. Well, OK... maybe a few beers too..
The CAPT-032S holds about 4 oz of liquid. The exit end is pointed straight down so there is a liquid seal at the cap tube. With the spun drier the data tag said 5.25 oz 134. When the new compressor stopped working (heat) I knew that the charge was wrong or the spun drier was plugged or maybe the beginning of the cap tube. Pressures were -10 and 80 high.
I pulled the spun off and clipped the first inch of the cap tube entrance end. I also blew nitrogen through the system and put a paper towel at the cap tube open end... I did get a little oil but no gunk. Remember, I also did an acid test that was negative.
Installed the CAPT and pulled a vacuum. My micron meter stops at 400 microns, it is just old like me. It sat over night until I could get back to it the next day... still 400 microns.
Set everything up and weighed in 5.25 after filling the hose first. Started the system and it headed south on the suction side again. I came back to the garage a few hours later and it was still running. Once again I was down to -10 suction. Knowing the CAPT takes extra liquid I added another 3.75 oz. That's when I got 9 pounds. The compressor was cooling back but no frost so I let it run.
After I started this thread I took another look to pull a cow fart of gas out. I had 0 and 110 with slight frost. I pulled a 4' hose amount of 134 out of the high side. This was mostly liquid and about an oz. After I fired it up and let it run for a while, (still close temp), and had -8 and 100. There was no frost on the suction line seen but I did hear the the return of Orville popping corn and not as loud or frequent.
After it running since my last post the box doesn't seem to run as long and the pop corn sound is gone. The box is holding temp fine but I really haven't spent a lot of time in the garage since.
I'll keep checking it and listening but unless Orville comes back from the grave I'll probably leave well enough alone.
I'll let you guys know more later.