What type of pipe to use to run to my garden shed- 25 meters

[russblade]

I want to run a supply pipe under ground 500mm from my house to my garden shed- 25 meters away, the water is off the mains so is potable, what type of pipe should I use ???, I want it to be 15mm for simplicity. Secondly I'm also laying 4mm 3 core armoured electric supply in the same chunnel( not wrapped together like), no problem with that is there ??? look forward to everyones words of wisdom, Russ

 

[Spike295]

My choice of pipe would be 20mm blue poly, available in 25m coils. Hep20, Speedfit etc are not designed to be run underground unless they are sleeved the entire length & sealed at each end where they exit the ground.

 

[GQuigley67]

put it in 750mm minimum to offer better protection against frost

MDPE or alcatheyne

 

[russblade]

does this come in 15mm ?, a bit stuck for space at the house end, how much should it cost ? many thanks, Russ

 

[GQuigley67]

25mm minimum i believe, just reduce to 15mm at the end

 

[Spike295]

does this come in 15mm ?, a bit stuck for space at the house end, how much should it cost ? many thanks, Russ

Minimum is 20mm, then reduce to 15mm with a fitting. If you are teeing off of 15mm anyway i would use 20mm.
Cost is about £25 for 50 metre coil.

 

[Reg Man]

20mm MDPE pipe buried a minimum 750mm deep maximum 1350mm. Armoured electrical cable not as deep minimum 200mm. Marker tape over water and electrics to show anyone digging at a latter date, that there are services present. Soft infill around the services so no nasty stones damage the services.