Looking forward to it! REAL Science!
Completely agree, I only run 1ml usually, maybe 1.5-2ml MAX, but with the all ceramic, should be good for a half dozen with a proper ISO soak and dry, unless those silicone gaskets...
Looking forward to your findings!
Here is a PCKT “all ceramic” cart. I ran 2 grams of “Sesh” brand distillate through it, and actually ran it down till half of the intake ports were DRY, then put it away. You can see the older DARK juice that leaches back out into the cart, one of the pluses of these WHITE ceramics, easy to see juice color. NORMALLY, you NEVER want those holes to get empty/dry between REFILLS, and I don’t. So as an experiment, I just ADDED a bit of fresh distillate to this DRIED OUT cart.
Here is what’s interesting to me, looking through the cart, I could see light, so that part of the vertical airpath was clear, ran my “dental floss” through anyway. Put this cart in my YOCAN Pro, used the 1.8v 10 second preheat function. Could NOT pull any air. Realized that since the YOCAN does NOT have “air activation”, the magnetic adapter BLOCKS the BOTTOM airflow hole completely. On this device, the airflow goes through the 2 TINY horizontal holes above the male threaded 510 connector. So the bottom vertical air path is physically blocked by the dead end adapter.
I used a PIN to push through those horizontal holes, several times, but still had AIR BLOCKAGE. This type of DRIED juice, in this area of the cartridge, unlike an internal atomizer block, does not get better using preheat, or manual firing.
So, I switched to my PKCT-2, which DOES have “air activation”, and it’s magnetic adapter does NOT block the vertical air path. The PKCT adapters, have a hole in the bottom of them. So now this cart is working again, but only on the PKCT-2, in either manual or breath activation.
From my ECig days/years, I never liked “air activated”, “auto draw” devices, but in this case, it was the SOLUTION. The other PLUS is when using the device on a water rig, you don’t have to hold any buttons, just DRAW.
When I finish off this TEST cart, I’ll try a 99% ISO soak, to see if a cruded up cart has any chance of being cleaned. At that point, if it looks ok, I may try to vape a tiny bit of thick VG vegetable glycerin, so as not to waste oil, and see if it still works. I may even try my ultrasonic cleaner on it, then try a bit of real oil. Or depending on how each experiment goes, eventually I’ll tear this cart down, to see if there is any Cotten in it, as SPRK customer service said there was.
In the end, I’m probably going to limit my refills to 2 grams per cart, then toss. The OIL is expensive enough that a fresh $3.00 cart, seems the best way to go in any case, unless stranded on a desert island, or just plain broke.