Hi Everyone,
I just found great tubing!
I underwent a sleep study last night, and when the technician pulled out the mask I had to wear, I could not believe my eyes. There was this beautifully-made, light, highly flexible, relatively smooth, medical-grade tubing in a large diameter.
It even had fittings that might be usable. No whistling like you get with corrugated tubing according to the sleep study technician. I get whistling a lot when I blow open-ended through the Hohner black corrugated tubing.
Now I know where to go to get the highest quality tubing for melodicas: medical respiratory equipment suppliers.
Lowboy