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RedR TSS

If the pipeline is going to be laid on the surface of the ground then galvanised steel pipe is the only option. Plastic pipes laid on the ground are subject not only to animal damage, but also to sabotage by those wishing to feed their goats etc, or to get water for other purposes. Galvanised steel pipe is more expensive than plastic and also costs more to install as you have to have a joint every 6m or so. 

 

The simplest way to deal with the pressure is to have break-pressure tanks to limit the pressure building up in the pipeline. The number you would need would depend on the profile of the pipeline. Ideally you would have the initial section feeding a lower level tank without any valves and simply run the excess water to waste in an existing steam course. This would give you a lower pressure in your pipe without the need for any expensive and difficult to maintain pressure control valves.

 

John Cosgrove