Take a look at this:



(1) See where the "63" joins two three-ways? Ok, well, why not put a 4way there instead? I mean, what's the point of using two 3 ways? The "63" doesn't look like it does anything other than act as a double male to connect the two females.

(2) See the #72 green surge damper... ok, I just want to make sure mine is working right. I can SUCK on both ends and air goes through... but I can only BLOW on one end. Is this right?

Thanks,

GD