Delta Fountains was tasked with developing a large scale floating pond fountain display in the existing pond at the Eaton Headquarters. The client wanted a self-contained water feature appropriate for the 300-foot (in diameter) pond outside their office building. With several challenges to overcome to complete this project, the end result was a 40-foot floating steel spray ring.
We started out the design by calculating the necessary volume of water needed to create the 40-foot spray diameter. We determined that we would need a minimum pumping rate of 3,456 g.p.m. Since we were limited by the six existing conduits, we decided to divide the volume by six pumps. We could have easily achieved the flow with fewer
Once we settled on the six pumps, we had to figure out how to float this massive spray ring. We were very concerned that the typical design for our floating fountains would not provide the necessary buoyancy or stability to support the 4″ x 40′ diameter stainless steel pipe ring and the submersible pumps. The solution was to make the spray ring in 20-foot segments, with each segment straddling a 90-inch diameter floating platform which also supported the submersible pump. The segments were fitted with mechanical flanges which would make it easier to make up the connections once each of the segments was placed in the water.
The pond was full at the time of installation, so all the connections had to be made from a Jon Boat we brought along. To increase the buoyancy capability, we added a 45″ floating platform beneath each of the segment connections. As it turns out, the combination of six 90 inch floats and the six 45 inch floats easily handled the more than 6,000 pounds of equipment.
For anchoring the massive pond fountain assembly, we borrowed inspiration from our previous experience with the Jacqueline Kennedy Onassis Reservoir installation. We fabricated custom anchors fitted with steel weights that were heavy enough to effectively secure the ring yet not dig into the clay liner.
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