Existing Tank Repair
A typical condition of lakes / tanks installed by others that loose water much faster than the evaporation rate, is a pervious or rock layers visible inside the waterline and sides that are too steep to hold a sealing layer. Sealing an existing tank cost factors are mainly controlled by availability of onsite materials. Tank shown below was enlarged to get material to seal and slopes were reduced to retain layer. Note large vibratory roller in background compacting and sealing new layer. Tank shown with water is approximately 2 months after "Run-Off event". Water level is now dropping approximately with evaporation rate.