I love this design. Hopefully it will be very fruitful.
I added 2 one way check valves and applied Vaseline to the outer connections to allow for easy removal without spillage. They can be placed below the water line without issues. The 1/4" hole is perfect for the valve plus the hose, it just snaps in tight.
I had the 12" bubble stones already from a PMP design so I rotated one 180 degrees to reverse the bubble pattern for a more even air distribution.
I used a stainless steel cookie rack because my old Perlite was like quicksand and things would sink down to the bubble stones, but when you buy the bigger bag of Perlite the grains tend to be bigger so you don't get the quicksand effect. I think the extra volume of Perlite helps too. The rack really isn't needed anymore.
So far I've failed with Pan Cyans using Waylit's Pan Cyan Tek. Colonization was fine but once I opened the jar nothing would grow. I did agar work (8 transfers) without using poo so hopefully that's not the problem, I hear you can select mycelium for non-fruiters.
Currently my P.C. Jamaicans are looking good with rebounding mycelium after casing and hopefully my P.C. Hawaiians will follow suite.
I struggle with knowing how much to mist the casing. I have one of those fine mist bottles that is hard to see what is coming out. It's easier with mycelium because you can see water glistening on top. Casing just swallows water up and frankly I can't see the difference between the dryer casing and wet. I'm just trying to underwater now. I know when a pin shows up I need to stop misting the substrate altogether with P.C.
My hygrometer says my box is at 99% if it can be trusted. It seems to be accurate from what I can tell. Is that too much humidity for Pan Cyans? Seems like opinions vary on that.
Thanks for the great FC design!