50 metre oil line - how would you do it....

[Bunker]

I have to run a new 50M oil line down the side of a flint wall, behind some new trees.
It cant be buried due to the lack of space between the wall and trees but will be covered after with mulchings.
It then has to cross a small low traffic grassed area where it can be buried to the external boiler (pool house - how the other half live etc)
The run will have to be in copper as its technically above ground, but Id rather protect it with an outer sleeve. I dont want to use water pipe as its tricky to run in straight sections, so thinking 1 1/4 black waste pipe with unions every 3metres, with the OIL LINE tape spiralled round.
Any other ideas out there?
Cheers

 

[Roger Welton]

I'd be doing the same as you but probably be using 20mm black conduit

 

[Bunker]

I'd be doing the same as you but probably be using 20mm black conduit

I have doen that with plastic pipe before but the conduit is no good for bends, ooooh - unless I use flexible conduit on the bends?
Also conduit expands in the sun, I had problems with that once before.
cheers

 

[Roger Welton]

You can heat the conduit and pull bends.

 

[Nostrum]

Maybe some kind of semi rigid pond pipe?

 

[lame plumber]

plastic sleeved copper and it bends ok

 

[Killy Bing]

Plastic sleaved copper as lameplumber said, i would duct the underground section for when some numpty puts a fork through it. Also from experiance from pool houses, they tend to run the tank dry and the oil line too, if you dont have alot of fall put a tee in at the tank to you can easily connect onto it and pump it.

 

[Nostrum]

The way interpreted the OP was from a fixing point of view. Personally I would use 25mm black conduit as roger suggested. It can be a real chore getting an oil line to look half decent down a rough wall and quite time consuming, plus its open to damage a lot easier. I'm sure you can get semi rigid pond pipe to connect the lengths of conduit together if your worried about expansion.

ive done it in overflow pipe before, a little bit tight at times so 25mm would work well, also they do sweeping bends for conduit and it looks a bit more professional.