Here are some images of the pond we build. It is 4 meters in diameter, and 1.5m deep in the center.
A few questions.
1. The owner of the property has given us 370kg of bentonite clay to line the pond - is it enough so that it will hold water for at least a week? We can refill it from the aquaduct every Monday.
2. The walls are steep, so applying the clay with a rototiller doesn't seem feasible. What would be an easy and practical way to do the application? Are the stones that we have placed to prevent erosion from entering water going to be a problem in the lining of the pond with clay?
3. Will it be possible to grow aquatic plants even with large amounts of bentonite clay?
4. The bottom berm is a bit high but matches the level of the back wall and is 20cm above the overflow -- is this necessary?
5. What might you expect to as maintenance for a pond like this?