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``4' of Soo P"' <br />L. 18.1.1. The Collins Avenue median is irrigated through a 'wethose' <br />subsurface irrigation system supplied by City water meters, with <br />the exception of median island 'bullnoses' which are watered <br />with overhead irrigation. <br />L18.2. Required on -going maintenance as follows: <br />L18.2.1 Monthly — Turn system on with controllers and check <br />program. Ajust program as needed for seasons, new <br />plantings, and weather conditions. Verify that system is <br />running 20 minutes on and 20 minutes off, per cycle, to <br />prevent 'wethose' hydration (decrease leak rate). <br />Suggested frequency of watering (will vary based on <br />rainfall) is 5 cycles per day /5 days per week during dry <br />season and 4 cycles per day /3 days per week during wet <br />season. Visually inspect valves, filters, and backflow <br />preventers for malfunction or damage and repair as <br />needed. With system running, visually inspect for PVC <br />pipe breaks or 'wethose' needing repairs. Always make <br />repairs to all PVC or 'wethose' pipe after flushing the <br />pipe. After repairs are complete, turn the system on to <br />verify that no additional work is required. <br />L18.2.2. Quarterly — In addition to monthly maintenance <br />schedule, open flush ports and let water run a minimum <br />of 3 minutes. Check filter elements for excess residual <br />and replace if needed. <br />L18.2.3. Annually — In addition to monthly maintenance schedule, <br />replace filter elements and controller batteries. <br />Chemically flush system using 'Disolve' (this process will <br />remove iron, calcium, and other buildup on the inside of <br />the 'wethose' and PVC pipe). <br />L18.2.4. Accidental damage to system — Follow the monthly <br />procedure and be mindful to always flush the system <br />before and after making repairs. <br />L18.3. Requirements for Conventional Irrigation Systems within project limits: <br />The Contractor is to familiarize himself with the existing irrigations <br />systems and is responsible for the repair of all components to insure a <br />continually efficient irrigation system. This includes the adjustment of <br />the controllers to insure the correct amount of precipitation necessary for <br />viable vegetative growth, always following any South Florida Water <br />Maintenance District drought guidelines. Contractor is to perform <br />monthly wet tests, to verify viability of system, on the last Wednesday of <br />City of Sunny Isles Beach I Request for Proposal No. 12 -05 -01 <br />