It was difficult, exhausting, tedious, and dangerous work for the divers to maneuver such large pieces of equipment in about 8 to 10 feet water with close to zero visibility but, with the aid of air bags to handle the weight, and years of experience, the dive team successfully, and safely, removed the old screen and installed the new unit.
As you can see in the image below, the old, cylindrical screen was almost completely clogged with silt. For the last few months, the irrigation system has only been able to draw enough water from the lake to run the irrigation system at 50% of it's capacity. That will not be an issue any longer with the new, larger, square unit pictured below. The new unit has larger openings that are small enough to keep out the fish, sticks, turtles, etc. but not so fine as to clog with silt.