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CITY OF SUNNY ISLES BEACH Bid No. 01 -09 -01 Page No. 21 PARKS/MEDIANS/RIGHT -OF- WAY MAINTENANCE SPECIFICATIONS ' 35 - 1/2 Male Pipe Thread x 3/8 x 3/8 Tees 20 - 1/2 Male Pipe Thread x 3x8 Adapter 1 - Rainbird Unik Field Transmitter (to check/set controllers) I. REQUIREMENTS FOR EXISTING IRRIGATION SYSTEM ON COLLINS AVENUE MEDIAN 1. The Collins Avenue median is irrigated through a `Wethose' subsurface irrigation system supplied by City water meters. 2. Required on -going maintenance as follows: A. Monthly - Turn system on with controllers and check program. Adjust program as needed for seasons, new plantings, and weather conditions. Verify that system is running 20 minutes on and 20 minutes off, per cycle, to prevent `Wethose' hydration (decrease leak rate). Suggested frequency of watering (will vary based on rainfall) is 5 cycles per day 5 days per week during dry season and 4 cycles per day 3 days per week during the wet season. Visually inspect valves, filters, and backflow preventers for malfunction or damage and repair as needed. With system running, visually inspect for PVC pipe breaks or `Wethose' needing repairs. Always make repairs to all PVC or `Wethose' pipe after flushing the pipe. After repairs are complete, turn the system on to verify that no additional work is required. B. Quarterly - In addition to monthly maintenance schedule, open flush ports and let water run a minimum of 3 minutes. Check filter elements for excess residual and replace if needed. C. Annually - In addition to monthly maintenance schedule, replace filter elements and controller batteries. Chemically flush system using `Disolve' (this process will remove iron, calcium, and other buildup on the inside of the Wethose and PVC pipe). D. Accidental Damage to System - Follow the monthly procedure and be mindful to always flush the system before and after making repairs.