Godd morning. I write you from Spain. I¨ve seen on youtube how you build the pools. I¨d like to know what is the material used as a lost formwork. In youtube i can see a material that unroll and then place it on vertica wall on wood before place the iron. if you could give me this informatión i´d be very grateful.
Thank you, Juan Fernández
0034639789234 Spain
www.piscinasalpuente.com
