Try the the choke at the bottom of Farnsley Lane Swallet...
Hmm, still interested in this one.I know Norman used to have a stack of concrete rings round at his - wonder if they are still there, they have been there a long time. I think that the Flower Pot entrance would be worth re-excavating. How many people would we need over a weekend to sort it? Any permissions needed Andy?Dan.
what about that black ribbed drainage pipe. Used to great effect at hunger hill swallet. Its perfect for lining small shafts, wont degrade.
Quote from: SamT on February 10, 2008, 09:11:27 amwhat about that black ribbed drainage pipe. Used to great effect at hunger hill swallet. Its perfect for lining small shafts, wont degrade. Not sure it wouldn't "squash" as the refilled choke settles as the blue drums have done, its something we didnt uderstand at the time. Just a good few tree trunks mixed in with the backfill apparently helps too. I
Needs to be the big stuff though - to cater for the larger caver
Hughie might be able to get you a price, but otherwise - I'd keep you eyes peeled as you drive around. You never know eh. Infact - I think terry worthington mentioned the other night that there was a load of roadworks nr Matlock coming to and end - and there was stacks of the stuff kicking about, might be worth having a word with someone down there, its the type of stuff where there'll undoubtedly be a few lengths or off cuts left over at the end of a job. Needs to be the big stuff though - to cater for the larger caver
At work we've just (as in on thrusday!) discontinued development of our 630mm butt-fusion machine similar to this......so i've been investigating the test cutt-offs of pipe. However if you've ever seen a polyethylene pipe 630mm in diameter you'll know that the walls are v thick (~10% dia) meaning that they are VERY expensive and very heavy! Will let you know if i get any oportunities, but don't hold out!
[sn-word] he said butt fusion machine [/sn-word]
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