I live in the Arizona desert, on a flood plain. Most of the time things are pretty dry. But during monsoon season the area I live in experiences flooding. I am planning a shallow, square, sunken pond. The main pond will be 4.10' L x 4.11' W x 3' deep. I plan to build an 8wide wall around the pond to keep out flood water. The wall will be made of standard red bricks. I plan to make the wall 2-3 bricks high. This would make the wall itself around 5-7 inches tall. The foundation for the wall will be concrete. Do I need a waterproof concrete sealant for the foundation? I plan on installing a power cable for my submersible filter between the EPDM liner I plan to use, and the mortar for my brick wall. Should I use sand between the mortar and the cable to protect the cable from the mortar? The cable will be encased in PVC as well.Thank you.
You should use a concrete sealant, it can't hurt. Put the cable under the foundation in PVC and it will be fine.
