The Cedaredge Golf Course is in need of some expensive repairs to its irrigation system. A discussion of the matter at an informal board meeting in October indicated that funding for the work could be years in the future.
Problems affect the front nine, according to a consultant's report commissioned by course management.
Low pressure in the front nine system contributes to uneven water distribution, brown grass, and thin turf areas. The front nine gravity-fed irrigation provides inadequate delivery pressure.
Replacement of the entire system at a presumed cost of $1 million is obviously out of the question, noted course superintendent Adam Conway when he presented the report to trustees.
Besides that, needed funding for a water filter system and a new pump with 40 to 50 horsepower motor is a good year or more away, board members remarked.
The immediate priority is to try to standardize the sprinkler head nozzles. There are a variety of them in place now which makes maintaining equal pressure in the system impossible, and it requires constant re-adjusting of the sprinkler heads.
Line tests indicated pressures ranging from 140 p.s.i to 38 p.s.i. Sprinklers need to run at a consistent 80 p.s.i., the report states. "Spikes in pressure are off the charts," Conway told the board.
Most of the nozzles in use are no longer manufactured, and so used ones in good repair have to be found on the secondary market or bought from other courses in the area.
Silt and sand in the system is damaging the nozzles and the sprinkler heads themselves. A silt straining system would cost $14,000 to $40,000, it was estimated. A strainer system would probably be the first of the costly elements needed.
There is an non-operating 10 horsepower pump for front nine watering. The system would require a 40-50 horsepower pump to maintain 90 p.s.i. delivery pressure.
The course management will work to get cost numbers together for the 2015 budget and then establish a priority plan.
According to the consultant's report, the following items need to be addressed:
•The pressure available from the source pond is not enough to properly irrigate the front nine holes. Back nine irrigation (also gravity fed) is adequate except to water hole #18.
• Clean out the valve box near #11 green that contains the pressure-reducing valve and check the valve for proper operation.
• Adjust all the sprinklers to the same discharge pressure.
• Edit the flow manager portion of the (system computer) database to limit the flow through the pipe network to five feet per second.
• Install the same nozzles in all the sprinklers and edit the central computer database to reflect the changes.
• Adjust the run times in the central computer to match the sprinkler type, either full circle or part circle.
• Install a wye strainer or similar type of filter on the system to prevent debris from entering the mainline pipe (estimated cost, $14,000 to $40,000).blog comments powered by Disqus