On-Site Sprinkler Irrigation of Treated Wastewater in Ohio

Bulletin 912

Step 12: Operation and Maintenance

All landscape irrigation systems require regular maintenance to protect the investment in the equipment. Wastewater irrigation systems are no different. In addition, proper operation and maintenance are essential to protecting public health and the environment. Periodic inspection and maintenance of the system will ensure that the system is working as designed and will save the homeowner money by preventing premature repairs to or replacements of the system components.

Every 6 months:

1. Check the pumps and alarms.
2. Turn on the irrigation system to check spray head function and spray pattern. Repair, adjust, or replace spray heads as needed. Also check for ponding or runoff.
3. Place several rain gauges in the irrigation area to check the depth of application. The system should apply no more than 0.2 inches per day to prevent ponding or runoff.
4. Sample the quality of the irrigated water by placing a sterile container in the irrigation area and allowing the irrigated water to fill the container. Test for CBOD5 and fecal coliform bacteria. Refer to the SETLL website www.ag.ohio-state.edu/~setll for a list of qualified wastewater testing labs.
5. Check for landscaping changes that interfere with system operation. Be especially watchful for paved areas and regrading where soil fill has been brought in or soil has been stripped away.

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Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture

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Keith L. Smith, Associate Vice President for Ag. Adm. and Director, OSU Extension.

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