‘DREDGE ONLY SILT, LEAVE ONLY WATER’: THE WALKER PRINCIPLE.

Work party 26.7 (1)

‘DREDGE ONLY SILT, LEAVE ONLY WATER’: THE WALKER PRINCIPLE.

Work party 26.7 (1)Watching last year’s industrial scale dredging above Clydach Lock (as shown below), our chairman Gordon Walker (as shown above, in blue) noticed a flaw in the process. To paraphrase the immortal Harry Belafonte, ‘There was no hole in the bucket’. Hence, as the dredged silt  had to be taken by lorry away from the site most of the weight was water. You can shake a bucket as hard as you like but without some  drainage holes you will get rid of very little water. A lot of that will also contain invertebrates.

Dredger 14.9 (4)

So, scouring refuse tips worldwide, Gordon produced a brazier-sized rusty iron object with holes the size of golf ball in the sides and bottom. This was then attached to a winch and pulley on either side of the canal so that the work party could get down and dirty to do a bit of do-it-yourself water-lite dredging of the canal. It would have been a sight quite common in the nineteenth century. The colander was hauled across the canal, picking up silt but letting out water,  allowed to drain on the side and then the contents were barrowed away. Below you can see the bucket/brazier/colander/sort of thingee, being emptied into the wheelbarrow. Well done, Gordon. Necessity is the mother of old bits of iron with holes in them.

Work party 26.7 (2)

Blog and photos by Martin.

 

Blog and photos by Martin

Recent Post

Work Party: Tuesday 9th July 2024

The volunteers met at Bridge 8 as planned but decided to postpone lime mortar work on the bridge ...
Read More

“Pirates In The Park” – Sunday 25th August 2024

Are you ready for your next seafaring skirmish? Get your cutlass, eye-patch and parrot ready for our next ...
Read More

The Week Ahead: Sunday 7th – Saturday 13th July 2024

Sunday 7th July: Canoes & Kayaks for hire at Coed Gwilym Park, Clydach. First hire 10am, last hire ...
Read More

Work Party: Tuesday 2nd July 2024

The day at Bridge 8 started off both well and badly: the good news was that the weather ...
Read More

The Week Ahead: Sunday 30th June – Saturday 6th July 2024

Sunday 30th June: “SUMMER FUN” : Canoes & Kayaks for hire at Coed Gwilym Park, Clydach. First hire ...
Read More

Work Party: Tuesday 25th June 2024

There was an element of déjà vu about today's gathering, as we met again at the Pontardawe aqueduct ...
Read More