2/20/2014 1:02 AM
Hi Joshua,
We have been using MDPE & HDPE in the UK since the mid 90's and have found it a far superior material to PVC. As mentioned by other comments, PVC has issues with long term performance and does fatigue in a very short space in time with bursts, gluing issues, requirement for thrust blocks, etc. PE pipes are not only very durable (and in my opinion will last allot longer than the quoted 20 years) but very easy to install via mole ploughing, but also has a range of very good jointing processes - Butt welding, fusion welding and compression fittings. The mere extra cost of $20k i think is a very small extra price to pay inconsideration on the long term returns of reduced maintenance and repair of the system in many your years to come.
Hope this helps
regards
Lee