Burying lines

[farmerboy469]

Ok guys here is my senerio, I want to bury my vac line and sap line from vac pump to releaser which is about a 1/4 -1/3 of a mile away what size of line would be adequate for each?

[wiam]

How many taps?

[farmerboy469]

I knew I forgot something, I have about a 1000 on line.

[madmapler]

In order to give the best estimate you need to provide the size pump(cfms) and the hgs. you're hoping to get at the other end. With an 1.5" line a 30 cfm pump will give you 15 cfms at 1500' while maintaining 15hgs.. A 2" line will give you 24 cfms with the same pump and distance and holding 15hgs. If you're looking for higher hgs. and you probably are, then I would say 2" would be best. I'm talking about the dryline of course. You could go larger and benefit but the cost will be substantially more. The rule of thumb for best results is around 2 cfms per 100 taps but less should be OK if you maintain your system well for leaks. I'd go 1" on the wetline. If its pitched right you'll carry some cfms there as well.

[GeneralStark]

At least for the dry line you could save some money by using schedule 40 conduit or other "cheaper" pipe that is not food or potable water grade. But yeah, it really depends on what you are hoping to do and what your existing system needs to function effectively.

[wiam]

Are you doing a gravity releaser at other end of buried? And then pumping wet line? My releaser is 1700 feet from my pump. I have 1.25" vacuum line and 1" pump line. About 900 taps. I have to keep right on top of leaks to stay near 25" which is about what my 3 hp Atlantic will do. The lines go over a hill. I know there are low spots and condensation will settle there. I have used a large line off my compressor to blow it out and that helped. I would bury the lines again but would be more careful about grade and go at least 1.5" for vacuum line.

[n8hutch]

I am sure there is a reason but why couldn't you run one 3" line as a wet main under ground & then split into two separate lines once you reached your bush? Seems like your woods would freeze before your underground main & every night it would be ducked dry. I would think 3" pipe would give you adequate vac trasfer.
I don't however know the price of 3" pipe per foot.

[farmerboy469]

I have plenty of cfm it's a Alamo 100+ and my releaser is electric with a internal pump so I probably would have to add a external pump to push it that distance u think? About half the distance it goes up a slight grade and then on a down grade. And it is all open field. It just get to be a pita getting sap hauled when frost comes out.