Stewart & Suzanne
Wall building progress
It takes much longer than I expect to build the waterfeatures walling. It consists of two walls separated by a 5 cm air gap. In this gap is a waterproof pond liner sandwhiched between two layers of geotextile( think underlay ) to stop any sharp bits of concrete piercing it. On the parts that you will not see I have cheated and use breeze blocks beacuse a) They are cheaper and b) It speeds up the process.
Wall building progress
It takes much longer than I expect to build the waterfeatures walling. It consists of two walls separated by a 5 cm air gap. In this gap is a waterproof pond liner sandwhiched between two layers of geotextile( think underlay ) to stop any sharp bits of concrete piercing it. On the parts that you will not see I have cheated and use breeze blocks beacuse a) They are cheaper and b) It speeds up the process.