blackheart
Well-known member
I've been wanting to try this out for a while. since I have two Oreck Buster B's I thought it would be interesting to hook them into a parallel setup and see how it differed from a series setup
Unfortunately things did not go as planned! The first time I tried a parallel test the units were clearly not sealed
The series test resulted in leakage from the body of the 1st unit. I felt they weren't working together as well as they should have been. All I did was connect the hose of the 2nd unit to the exhaust port of the first unit.
It was after testing both those I decided I should have a control setup so then I ran the tests on a single buster B with the central vac hose. I was surprised that it has as much airflow as it had at the end of such a long hose.
Then I spent time re-setting the parallel setup trying to get a better seal and the back pressure created when the hose was attached cause the bucket to begin collapsing. When I tried to take a sealed suction test the bucket caved in and broke seals.
Since i'm feeling lazy here's the CFM number
Parallel initial: 50.87 CFM
Series: (estimated 2200) 57.42 CFM
Single Unit: 53.95 CFM
Parallel (Bucket) 131.02 CFM
Parallel final: 75.5 CFM
Are there better ways to test this? Certainly but the cost of it would be much higher and i'm not curious enough to spend the money.
Unfortunately things did not go as planned! The first time I tried a parallel test the units were clearly not sealed
The series test resulted in leakage from the body of the 1st unit. I felt they weren't working together as well as they should have been. All I did was connect the hose of the 2nd unit to the exhaust port of the first unit.
It was after testing both those I decided I should have a control setup so then I ran the tests on a single buster B with the central vac hose. I was surprised that it has as much airflow as it had at the end of such a long hose.
Then I spent time re-setting the parallel setup trying to get a better seal and the back pressure created when the hose was attached cause the bucket to begin collapsing. When I tried to take a sealed suction test the bucket caved in and broke seals.
Since i'm feeling lazy here's the CFM number
Parallel initial: 50.87 CFM
Series: (estimated 2200) 57.42 CFM
Single Unit: 53.95 CFM
Parallel (Bucket) 131.02 CFM
Parallel final: 75.5 CFM
Are there better ways to test this? Certainly but the cost of it would be much higher and i'm not curious enough to spend the money.
