Two vacuums

[ptonsparky]

Not EE....but will a couple shop vacs in series produce more suction?
Mice decided to nest and die in my wife’s car

 

[Coppersmith]

Not EE....but will a couple shop vacs in series produce more suction?
Mice decided to nest and die in my wife’s car

In parallel, you will get more suction. In series, I believe you will get the same amount of suction because with two shop vacs of the same type, the motors are running at the same speed and thus the second vac will not pull the air any faster.

 

[hillbilly1]

You mean a ME? Probably would get at least a slight increase.

 

[ptonsparky]

one vac smaller than the other and I didn’t have the inclination Or parts to FE a parallel adaption so, I’m done. Series did not a give noticeable increase in volume.

 

[kwired]

I'm going to have to agree might get a slight increase in dead headed vacuum pressure, but not any significant increase in pressure.

Two units in series or parallel possibly can increase volume of air moved if pulling from an open ended hose/tube/ etc. until size of that tube causes enough resistance to counter it.

Parallel possibly would be more efficient in most cases, would also depend on discharge conditions though.

Where in the car? Ventilation system somewhere? that can be the worst to try to clean out.

 

[ptonsparky]

Yes, ventilation.

 

[ActionDave]

No matter how many vacuums you hook up you're never going to pull more air out than atmospheric pressure can push in. Since you are closer to sea level you have a little bit of an advantage. What you really need is a Costco size box of alum.

 

[kwired]

Yes, ventilation.

If you don't wash it out it will always smell like you know what.

Plus if there is gaskets on air diversion plates they likely chewed them off and they won't seal when in a closed position. Depending on the design, some vehicles don't close the liquid to heater core but rather divert more or less air over heater core to adjust temp. You can end up always having a little heat introduced in those types when you have heat "off" and are trying to cool.

 

[ptonsparky]

Wife’s car. I did what I can do. Maybe I need to have her study the posts on UV lights and filters.

 

[Coppersmith]

CarMax gives good trade in values.

 

[electrofelon]

Several years ago went out to my truck one morning and noticed a roll of toilet paper I had in there had some nibbles on it. I think I had left the door open the night before. Uh oh.....Set a trap the next night. That was not a good idea it turned out. Got mother mouse, so her babies died in the HVAC ducts somewhere. Half a week later the smell was so bad I couldnt use the truck for 3-4 days. I ended up making an insurance claim and took it to the dealer. The tore the entire thing apart to get to it. Ur gunna need the factory procedure to get a dash apart and back together again.....

 

[ptonsparky]

That’s what happened. Caught Mom, found two of the babies. tThe rest are somewhere in the ductwork.

 

[retirede]

No matter how many vacuums you hook up you're never going to pull more air out than atmospheric pressure can push in.

That’s the idea. The velocity is what will suck the stuff out.

 

[LarryFine]

Depending on the design, some vehicles don't close the liquid to heater core but rather divert more or less air over heater core to adjust temp. You can end up always having a little heat introduced in those types when you have heat "off" and are trying to cool.

I remember reading about converting the 2-fitting on/off water valve with a 4-fitting diverter type in Ford vehicles.