maintenanceguidesstorm


	Maintenance Guidelines for Brentwood StormTank Stormwater Systems
	A Brentwood StormTank Stormwater Storage System is one component in an overall system of stormwater collection, treatment, detention, or infiltration. Stormwater systems come in varying shapes, sizes, and configurations. Some systems offer pre-treatment to remove sediment and/or contaminants prior to entering the StormTank storage area and some do not. Systems without pre-treatment require greater attention to system functionality. In order to maximize the storage capacity of the StormTank system for years to come, pre-treated or not, we offer the following general maintenance guidelines:

	Determining if Maintenance is Required
	Visual Inspection A visual inspection of the following system components should be performed semi-annually to look for visual deficiencies in the form of sedimentation and debris: • Manholes located before and/or after the StormTank system • Inlet and outlet piping • Discharge area System Operation • Inspect the system while in operation, making sure inlets remain open and the system doesn’t back up. • If the system has a flow-metering device, confirm that flow rates are not reduced or have changed drastically.

	Maintenance Frequency
	During Construction Care should be taken to avoid siltation of the system during the construction process. At Project Completion At the completion of installation and all project-related excavation, the system should be flushed to rid the StormTank modules of any construction-related debris and/or sedimentation. Regular Maintenance Maintenance to the system should be performed based on the findings of the semi-annual inspection or as a result of a decrease in system performance, as observed during system operation.

	Maintenance Procedures
	1. Determine if maintenance is required. If it is, proceed with the following steps: (If an upstream pre-treatment system is being used and requires maintenance, follow the maintenance guidelines for that particular product.) 2. Using a vacuum pump truck, evacuate debris from manholes, inlet and outlet piping, and the discharge area. 3. Flush the system with clean water (fire hydrant, tanker truck, etc.) to force debris from the system. 4. Evacuate additional debris (as in Step 2). 5. Re-flush the system 6. Repeat steps 2 and 3 until no additional debris is evident.

	Maintenance Precautions
	• Be sure to conform to all safety regulations when performing maintenance. • Avoid extreme direct water pressure when flushing the system.


	These Maintenance Guidelines were written by Brentwood Industries, Inc. with the express purpose of providing helpful hints. These guidelines are not to be construed as the only Brentwood-approved methods for StormTank system maintenance or the final authority in system maintenance. Check with the stormwater system owner/project engineer for their contract/specification requirements and/or recommendations. Contact your local StormTank distributor or Brentwood Industries for additional technical support.
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