irrigation backyard vineyard

[ThePrisoner]

I am planning on a backyard vineyard for about 120 vines in a 50ft by 50ft space.
The main problem is that I have 1 outside tap already irrigating a small vegetable garden about 30metres away from the house (100ft).
The vineyard area is going to be about 80 metres away (260ft).
What are the best options for extending this? Ideally, I'd like to have the pipes underground but admit that it might just be cheaper to lay hosepipe for that length.
Pressure should be ok as it works fine for 30metres to the vegetable garden.
Using a tap slitter seems to reduce the pressure even if only one tap is on, I'm not sure if that is to do with the hole in the tap lever or not.
I have to make sure no water is left in the pipes in winter or they will crack in the -30 degree celsius temperatures.
Any options or recommendations?

 

[LittleBearGameFarm]

I used 1/2" PEX tubing when I was raising birds out back. It's durable, relatively cheap, and the quick connects make it easy to switch your configuration. In areas that I mowed, I buried it, and in other areas I just ran it on the ground. I did drain it every winter to avoid any cracks.

 

[sour_grapes]

They do sell high-flow splitters. Here is one from Home Despot: http://www.homedepot.com/p/NELSON-Dual-Flex-Connect-Shut-Off-50315/100391268?N=5yc1vZbx5n

 

[ibglowin]

Go drip. As long as you have decent water pressure you should be able to run everything. It may take a little longer to build up pressure but it will. I run over a hundred heads on a single line with a zillion splits to grapes, perennials, tomatoes, roses you name it. In the Winter I just disconnect the short run of hose to the drip hose. I don't drain any portion of the drip system and we get down to 0 degrees F about 10-15 times each Winter without incident. My drip line is buried but only a few inches below the surface and certainly not anywhere near below the frost line.