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Messages - jousley

#1
hey all, i've been through this forum for a few weeks on and off - and finally made my own thien baffle and of course it works great.  Now i'm looking at how to run some PVC down teh length of my garage, installing some blast gates, and allowing the access to be easier.  I just have a question regarding the diameter of the PVC that I run. 
I am using a Craftsman Shop Vac - 5.0 HP.  model # 113.177690.  I believe the hose size of the shop vac is 1 7/8". I want to run some PVC down the length of my garage about about 10-15' with 3 blast gates to give me 3 access points to the dust collector.  I will be using one tool at a time as it's only me.  If my shop vac hose is 1 7/8", what diameter should my PVC be that i'm running down the garage.  At first, I was thinking of just using 2" PVC straight pipe - but looking on the forums people are talking about 3-6" diameter, which seems way too big for my application - but I'm not sure.

Wouldn't a larger diameter reduce the suction down the length of the run? 
Is 2" good enough for my app - or should I go bigger? 

appreciate all the knowledge and i'll let you know how it turns out.  Just need some informed advice.  Thanks again all.

J.