Favorite Straight Suction Vacuum made?

[vacuumdevil]

@tolivac There is not a noticeably difference without pipe .
I would be happy to test with a working water lift gauge for you. Using a gauge is the only way to see the difference.

 

[vacuumdevil]

@tolivac @n0oxy
Here is the marginal difference I found in the plumbing.

 

[n0oxy]

water lift test

Hey Alex, enjoyed the water lift test video, which power unit do you have? Isn't it one of the MD silent masters? I always thought it was airflow that is lost through the pipes rather than water lift, but maybe it's a little of both. Another reason I use all of my central vacuum units without pipes is because I live in an apartment so really can't install pipes, and it's not large enough to warrant it anyway, a 35 foot hose will just about cover everything and a 50 foot hose will allow me to clean the area outside my door.
Mike

 

[tolivac]

But what about plumbing that is years old and possibly has debris in it?I have the MD Silentmaster I use freestanding-120V 15A machine.

 

[tolivac]

The video about the plumbing was good-wonder what the change would be on a plumbing system that was installed by a usual "builder" and not a vacuum expert.In my case just don't want to run the pipes.Don't want to pay for the cost.And if I should move-can take my machines with me.