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1. Puddled clay - a traditional pool lining

Using puddled clay to make a waterproof lining for a pond is rarely mentioned these days - it's all butyl, fibreglass and concrete.


But before these modern developments, clay was the only suitable material available, and if you're doubtful you've only to look around at our canal system - originally lined with puddled clay.


What exactly is puddled clay? It's clay that has had all the air pockets squeezed out of it to make a solid, immovable, watertight layer. You have to do the puddling so it is a labour intensive method, but clay is cheap and provided you are careful, you should have a trouble-free pond for years. So a small pond in the back garden shouldn't be a problem, should it?


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Comments

  1 ann harford    22 Jan 2011 18.25.52

hello.i would like to have a wildlife pond in the back of my garden,presently i have dug out a hole 15 by 4.originally for koi,but herons prevail here,the soil is very heavy but light in colour,how can i tell what type how do i get 'puddling clay' i of clay i have.i know its something to do with lack of air.hope you can help.

  2 Alec and Val    24 Jan 2011 18.03.35

Hi Ann

Why not read the other sections of this feature? Click on 'previous page' to see all the sections. Click on 'next page' to read the next section. You should find all your answers there.


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