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ADVANTE_ MANUAL O&M , If faulty plumbing isn't the problem, the Textile Filter sound of tricklingwater could indicate I &I (infiltration and flow). In that case,further 1 Inspect for ponding.*The filter should not be saturated. Effluent should move freely through investigation is necessary the media. 2 Inspect the processing tank for the following: 2 While manifold is pressurized,check for prop- •Liquid depth (should be about 60-701/10 of the er positioning of orifice shields over each orifice. total inside depth of the tank) •Odor (should be musty, not pungent) • Color/consistency of scum(should be dark brown with a consistency that varies from i dense and crusty to soft and amorphous) • Effluent characteristics (should be no oily sheen ., t or foam) • Sludge and scum thickness (records should indi- *If there isponding in the textile Iter because of a build- cate typical growth accumulation of 1" of scum p g �'p $ up of oil and grease,scrape a sample of the bio»tat and and 2" of sludge per year for 3-4 occupants) have it analyzed by an environmental lab to determine its characteristic.For the AX Series filter only.-If there is ponding of indeterminate cause,coupled with a pungent odor,it may be necessary to dean the textile media. (Fxcessive cleaning will n-wrd nitrification. Only clean as often as necessary)The textile media hangs in individual sheets,and these sheets can be pulled out for cleaning(if necessary).First, remove the Recirculating Splitter Valve. Scum`; Flow 3 I s� , Through ` Fort g• . _ Measurements of solids accumulation help to determine when the septic tank needs pumping. A recommendation for pumping should be made when the bottom of the scum layer is within Use a hose or pressure washer,connected to the nearest 3"of the flow-through port of the baffle or when spigot. Wash the biomat into the underdrain and it will i there is an accumulation of sludge to a depth flow back to the tank,as long as the Recirculating Splitter ! within G" below the flow-rhrough port.After the Valve has been removed When done, replace RSV. first year's measurement of septic tank sludge and scum thickness, measurements only need to be taken about every three years, until the thickness- es approach their maximum depths. sji — -- , f - Remember.•clean filter only if ponding and odor occur.