Next step, dig down to increase the depth and create a nice slope to a sump location for waste to collect. Line the inside with cement boards to protect the liner. Tape up the joins. Add some fine sand around the base. Add some metal re-enforcing brackets to the top poles. Create a 4" wide rebated frame for the acrylic panel to sit in. Add some black rubber sheeting to fit between the wooden frame and the acrylic.









