Best hose size for shop vac when used to clean interior?

[markiteight]

Call Ridgid. 1-800-474-3443 Keep it real and unbiased. Ask them the simple question[s] Model# WD1450 14 gallon 6hp. wet/dry vac w/original 7' 2.5" diameter hose vs. 10ft. 1.25" diameter orange hose [from the auto detailing kit. Or it can even be their 10ft pro orange hose, they'll both lose suction just the same] Ask them if there's a reduction in suction power [sucking not blowing] when you go from the 2.5" hose to the orange 1.25" hose.

No need. I already addressed that here:

Please note in my original post the statement "all else being equal." If the smaller diameter hose is not pulling greater suction than the larger hose, something is not equal. Most likely the Rigid doesn't have the power to deal with maintaining flow rate through a smaller hose.

[CC268]

Lol love how this turned into a Fluid Dynamics course.

[Eldorado2k]

Most likely the Rigid doesn't have the power to deal with maintaining flow rate through a smaller hose. There's a reason why higher end carpet extractors use multiple, powerful, multi stage vacuum motors and smaller diameter hoses. In order to do their job effectively they need LOTS of suction. That is accomplished by moving lots of air through a small space.

I believe this is true and is the reason these large Ridgid vacs see a loss in power when a smaller diameter hose is connected. I'm not the only 1 who's noticed this. There's a well put together vid on YouTube by a user named Ghostses [I believe that's his username] talking about the same exact experience with the 1.25" Orange hose.

Yea you said that.^^ And I was even willing to agree with you. But you still kept on arguing. Smh.
And at the end of the day, we both know you're wrong, that's why you don't want to call Ridgid, because they'll tell you you're wrong too. It's all good. No biggie.

[ShaneB]

I use a 1.5" hose. I find the 1.25" hoses too small with not enough velocity and the 2.5" hoses are too big/bulky to get into tight spaces in the interior

[FUNX650]

...the laws of physics are universal...

Home Depot did not go out and design a
vacuum cleaner that defies the laws of
the natural universe.

^^^ ^^^


That's why, in this case: bigger is better.

Big hose = allows stuff to pass
Big power = properly-sized vacuum-
pump motor/fan = maintaining the
velocity and the volume.
Big pressure differentials = Inside vs Outside

Yep: "The fan does the sucking!"


Bob