vacuum styles

[MapleGroup]

Do different vacuums styles perform different? EX lengths of runs. If you had a system and used different models or styles what would be the range of results?

[BreezyHill]

Are you asking abut pumps?

[motowbrowne]

You can run a Shurflo pump on a car battery, or you can run a diesel generator to power a big ole vacuum pump. Yeah, they perform differently. Yeah, they can run a different amount of taps. Yeah, there's lots of sizes in between. Most important number is inches of mercury at the taphole.

[MapleGroup]

Ok thanks, I have a vacuum that can do up to 1500 taps but it seems it can't keep up because of the length of runs I have.

[mellondome]

It isn't the length of the runs, it the amount of small leaks.
What is the cfm and how many taps do you have on it?
Why do you state it can't keep up? Where do you measure your vac? What size lines and how long?

[BreezyHill]

Vacuum transfer is directly related to length. The longer the run the more friction. after 800 feet a 100 and 15 fm pump have the same transfer rate.

The long runs benefit from a wet/dry line system the most.

You need to get the Cornel Manual that Steve Childs put together and it will contain a worksheet that you can calculate ou what you will need to get the vac transfer you are lacking.
Good Luck!

Ben

[maple flats]

The biggest factor for vac. transfer in either single line or wet/dry is the tubing diameter. It takes a big line to transfer vacuum a long distance and the higher the vacuum the more is shows. As stated above, get the Cornell Maple Tubing Notebook by Steve Childs: http://maple.dnr.cornell.edu/pubs/Maple%20publications%20order%20form.pdf It is the second one under notebooks. In it you will find chatrs that show how much vacuum you will get from a given size pump at various distances and in different size tubings.
A larger pump may not get any more vacuum out in your woods if the tubing is not large enough.
Here's a cheaper price, same book: https://www.bascommaple.com/item/bnystvn/