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TMFilter plates in clear zone1. How long will the open cell foam last in the AeroCell TMAdvanced Treatment System?Open cell foam has been used as a wastewater treatmentmedium for approximately 10 years. There have been veryfew problems with foam degradation and plugging. Wepackage the foam in mesh bags (4 per module), which areeasily cleaned or replaced if a problem arises. We alsowarrant the foam to be free from defects and workmanshipfor a period of 10 years.2. Under what conditions are drip irrigation systemstypically used?Typically, drip systems are installed in a smaller areacompared to conventional gravel trench systems. This is veryadvantageous where limited space is an issue. Shallowinstallations of 6 inches are common and allow greatervertical separation distances to bedrock, water tables and restrictive soil horizons. Thisis very important because it allows the effluent to percolate through the soil, therebymaintaining a well drained and an aerobic environment in the soil system. Steep orcomplex contours are more easily dealt with by using drip irrigation because in part,smaller, more easily maneuverable equipment is used. In addition, there's no trench rockto move or significant backfilling required. These are only a few of the many advantagesof drip irrigation. Please contact us if you need assistance or have questions.3. How is the optimum filtered pump vault length determined?To determine the optimum length to use, first determine the application. For example,will the pump vault be located in a primary septic tank, a two-compartment septic tank,or a separate pump basin? If the pump vault will be located in a primary or two-compartmentseptic tank, it's important to locate the filter screens within the "clear zone" as much aspossible. The clear zone is located at approximately the same depth as the bottom of theoutlet tee or baffle for the chosen tank. If you don't know this depth, contact themanufacturer. If the pump vault will be located in a separate pump basin where timedosing will be utilized, it's important to located the bottom of the vault lower in the tankso more storage capacity can be maintained in the pump basin. This will prevent orminimize high water alarm conditions during times of higher water use. Please contactus if you need assistance with sizing a filtered pump vault.When it all goesDOWNHILLFrom Flow Dividers, Flow Directorsand D-boxes, Zabel ® has a completeline of gravity distribution products.GRAVITY DISTRIBUTION SYSTEMDS-DB-4D 4 Hole Drop BoxDS-DB-4L 4 Hole Level BoxDS-DB-6L 6 Hole Level BoxDS-DB-7L 7 Hole Level BoxDS-DB-9L 9 Hole Level BoxDS-DB-4DFlowDirector1-800-221-574241