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� . . <br /> � is available and can be customized for each the unit. This siphon eontinues until the <br /> site to target and remove the desired levels water surface elevation drops to the <br /> ( of sediments, dissolved phosphorus, olevation of the hood's scrubbing <br /> � d(ssolved metals, organics, and oil and regulators. <br /> , , grease. In many cases, a combination of <br /> I media is recommended to maximiza the The cartridges are connected to the under- <br /> effectiveness of the storm�vater pollutant drain manifold with a plastic connector. <br /> , ramoval. Since some media used is potentialiy <br /> I ^'µY , �u� , buoyant, a threaded connector afTixed to the <br /> under-drain manifold (with glue or other <br /> , , ,= •» adhesive) is necessary to ensure that the <br /> -• cartridge isn't lifled out o( place. For the <br /> I �;,"Y •�^�• heavier compost media, a slip connector is <br /> used. <br /> ( w`�`.`�.. �i� ".""..[; The StormFiller is aiso equipped with flow <br /> � spreaders that trap floating debris and <br /> � ��•�• ';� � , `I,•� surface films, even during overilow <br /> `� conditions. De endin on individual site <br /> °� .,,.:�: ''° P 9 <br /> " ,�.,,, characteristics, some systems are equipped <br /> . with high and/or base ilow bypasses. High <br /> •--���•-• flow bypasses are installed when the <br /> calculated peak storm event generates a <br /> ,� Figure 1.The StormFilter Cartridc�e flow that overcomes the over(low capaaty of <br /> the system. This Is especially important for <br /> Priming System Function precast systems. Base flow bypasses are <br /> � When stormwater in the StomiPilter unit sonetimes installed to byp4ss continuous <br /> inflows caused by ground water seepage, <br /> entei, a StormFilter cartridge, il percolates whicn usually do not require treatment. All <br /> horizontally through the cartridge's fller StormFilter units are designed with an <br /> , media and collects in lhe center tube of the overflow. Thc over(low operates when ihe <br /> cartridge, where the iloat in ihe cartridge is inflow rate is greater 'han the treatment <br /> in a closed (downward) posilion. capacity of the filler carf.idges. <br /> I <br /> � Water continues to pass through the (iltcr <br /> media and into the cartridge's center tube. <br /> � The air in the carlridge is displaced by the <br /> � ' water and purged from beneath the filter <br /> hood ihrough the ore-way check valve <br /> located in the cap. Once the center lube is <br /> flied with water (approximately 18 inches <br /> deep), there is enough buoyant force on the <br /> floal to open the iloat valve and allow the <br /> trcated water in the cenler tubc to Low into <br /> fhe under-drain manifold. This cac�as lhe <br /> check valve to close, initialing a siphon that <br /> draws polluted water throughout the full <br /> suriace area and volume of the filter. TLus, <br /> Ihe entire filter cartridge is used to filter <br /> waler throughout the duration of the storm, <br /> regardless of the �vater surface eievation in <br /> stornv;ater h1anapement, Inc.02004 StormFiiter Operation and Maintenance Guidelines 2 of 9 � <br />