I am looking for a way to regulate the amount of air being introduced by my spa blower. In my research I have read that putting a 3 way valve to divert some of the air out of the pipe (note: I am talking about diverting some of the air, NOT trying to restrict the air flow) can help dial in the air flow. My question to anyone with this setup, can you post a photo of the valve? Or can someone tell me which valve I should look for? I am handy and can put it on myself without any issues. I just need to know if there is some specific type of 3 way valve I need to look for, or just any old 2" 3 way valve will work?