Originally Posted by Dennis
I am in awe...
Sir Dennis do I detect an overtone of labelling me thick!! If so its well directed.
An interesting byproduct of remembering a project I had, which was to redirect drainage from a cliff top to a secured location over the cliff edge over an addit, the design involved reducing the weight over the cliff and because it is in a marine environment we looked at the effects of salt and other chemical toxic environs, worked out that the aluminum had to have maximun coatings and that would give it a life of over 100 years using helcor 300 diameter aluminum pipe, which we had specifically made for the job. Even isolated with neoprene the 316 grade stainless steel pipe brackets with neoprene.
after all that there was a rock fall off the cliff 5 years later then Council spent 3 million removing material and regrading the cliff edge - the pipe was destroyed in that move!