BDD,
I think this depends on one’s perspective. In Purna Yoga™ there are four main elements of which nutrition/lifestyle are one.
Therefore, I personally do not advocate the use of plastics for anything that is ingested into the body. In the interest of living the yoga I teach I have opted out of plastics and find glass and ceramics to feel better in terms of my living.
It is true that the neti pot isn’t used that much, and the water runs through not in, and it may be no problem at all. True. But much like holding a cell phone right next to your brain, why do so when you can use the speakerphone?
So for me the neti pot is ceramic. If it were not I would look into a food-grade stainless steel and verify the ratio of steel to nickel by contacting the company.
I used to use a plastic water bottle with a pop top. And I don’t like the pressure either. Since that time I’ve learned more and find neti to be a letting action rather than a forcing action. It should be gentle and forcing fluid in the nostril is rarely gentle.
Those are my thoughts. Do with them as you see fit.
gordon