how to check leak?

[xxw589]

How do you guys check the leakage in your flow bench? bubble solution？

How to measure the amount of leakage?

Thanks

[Flash]

How do you guys check the leakage in your flow bench? bubble solution？

How to measure the amount of leakage?

Thanks

Are you looking for an exact persentage of leak?????????
More info:

what material is it made of.
if wood, is it sealed aka painted.
Who make this bench.
How many inches of vac, are you trying to pull/push through this bench

[jfholm]

One way is to have your bench on intake mode and then seal off the hole where you mount your head you are testing. Slowly turn up your vacuum source and check your flow meter. If it shows zero flow on your flow meter then it probably has no leaks. If you show air flow even if you have the hole blocked then you have a leak someplace.

On the exhaust direction you can once again block off the hole, put something heavy on it so is stays put, and then again turn up the vacuum source and check your flow meter. Then you can also spray a soapy water solution around and see if there are bubbles.

John

[xxw589]

One way is to have your bench on intake mode and then seal off the hole where you mount your head you are testing. Slowly turn up your vacuum source and check your flow meter. If it shows zero flow on your flow meter then it probably has no leaks. If you show air flow even if you have the hole blocked then you have a leak someplace.

On the exhaust direction you can once again block off the hole, put something heavy on it so is stays put, and then again turn up the vacuum source and check your flow meter. Then you can also spray a soapy water solution around and see if there are bubbles.

John

thanks, that is the way I am using.