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• <br />• 3,0 Isolator Row Step By Step Maintenance Procedures <br /> Step 1) Inspect Isolator Row for sediment StormTech Isolator Row(not to scale) <br /> A) Inspection ports(if present) 1)B) 1)A) <br />. i. Remove lid from floor box frame 2 <br /> ii. Remove cap from inspection riser <br /> iii. Using a flashlight and stadia rod, <br /> measure depth of sediment and <br /> record results on maintenance log. <br /> iv. If sediment is at, or above, 3 inch 1 1 A 1 A 1 1�► <br /> depth proceed to Step 2. If not a .1 <br />. proceed to step 3. <br /> B)All Isolator Rows Lon <br /> _i. Remove cover from manhole at <br /> upstream end of Isolator Row <br /> ii. Using a flashlight, inspect down Isolator Row through outlet pipe <br /> 1.Mirrors on poles or cameras may be used to avoid a confined space entry <br /> 2.Follow OSHA regulations for confined space entry if entering manhole <br />• iii. If sediment is at or above the lower row of sidewall holes(approximately 3 inches) proceed to Step 2. <br /> If not proceed to Step 3. <br /> Step 2)Clean out Isolator Row using the JetVac process <br /> A)A fixed culvert cleaning nozzle with rear facing nozzle spread of 45 inches or more is preferable <br /> B)Apply multiple passes of JetVac until backflush water is clean <br /> C)Vacuum manhole sump as required <br /> Step 3)Replace all caps, lids and covers, record observations and actions <br /> ift <br /> Step 4)Inspect&clean catch basins and manholes upstream of the StormTech system <br /> Sample Maintenance Log <br /> Stadia Rod Readings Sediment <br /> Fixed point Fixed point <br /> Date 10 chamber to top of Depth Observations/Actions Inspector <br /> 10 <br /> bottom(1) sediment(2) (1)'(2) <br /> 3/15/01 6.3 ft. none New installation.Fixed point Is CI frame at grade djm <br /> 0/24/01 6.2 0.1 ft. Some grit felt sm <br /> 6120/03 5.8 0.5 ft. Mucky feel,debris visible in manhole and in ry <br /> Isolator row,maintenance due <br /> 7/7/03 6.3 ft. 0 System jetted and vacuumed djm <br /> 444• <br /> StormTech® <br /> Detention•Retention•Recharge <br /> Subsurface Stormwater Management <br />• 20 Beaver Road,Suite 104 Wethersfield Connecticut 06109 <br /> 860.529.8188 888.892.2694 fax 866.328.8401 www.stormtech.com <br /> StormTech products are covered by one or more of the following patents: U.S.Patents:5,401,459;5,511,903;5,716,163;5,588,778;5,839,844; <br /> Canadian Patents:2,158,418 Other U.S.and Foreign Patents Pending Printed in U.S.A. <br /> ©Copyright.All rights reserved.StormTech LLC,2009 S090809 <br />