On 2 July, 23:11, tomsimmons
wrote:
Well I'm hoping to avoid any masonry/concrete work. Not least because
it saves having to "plaster" the mason for a waterproof finish, or
plaster/coat it with something that won't shred the liner.

My masonary work will be lined with a liner too, so no concreting for
me.I just need to make sure I've got some sand or similar cusioning
between the liner and block work.