Finally finished my U-Can D0. Saito 100 with a Cline. The Cline built pressure like my friends YS91, and worked great for that tank. Now, it builds just slight pressure, and had to fatten the neddle way out (5 turns) to get it to run. I figure it's the duck bill valve. I have read somewhere others have used a check valve instead.

Anyone know what type, brand name, or where I could get one?