Question: I have seen a Video recently where they show (2) 2" Hoses open, then they put a Lift Gauage on (1) Hose to show that they still have 13-H/g, even though the second hose is open. I will try to find this video and send it to you. Mainly, what justifies a Company to claim Dual Wand Capabilities Answer: The video you you speak of is an El Diablo truckmount vacuum test. It to has a 45 blower and is dual wand ready. I have one customer with a 36 blower and he dual wands (not recommended) but he tells me it works fine as long as both wands are on the floor. All truckmounts pull the sa...