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ADVANTLcXm MANUAL 0- sound of trickling water could indicate I&I Textile Filter (infiltration and inflow)fiom ground or surface water.In that rase,f nher investigation is 9 Inspect for ponding.*The filter sheuld not be necessary. saturated.Effluent should move freely through the media. 2 Inspect the processing tank for the following: 2 While manifold is pressurized,check for prop- • Liquid depth(should be about 60-70%of the er positioning of orifice shields over eat orifice. total inside depth of the tank) (See photo,step 3,p. 14.) • Odor(should be musty,not pungent) • Color/consistency of scum(should be dark brown with a consistency that varies from - dense and crusty to soft and amorphous) x ` •:�. • Eluent characteristics(should be no oily ' sheen or foam) Ary+ , • Sludge and scum thickness(records should r • indicate typical growth amanulatton of 1" of scum and 2"of sludge per year for 3-4 rf there is pending in 6e qlser bec ;of't buadr up ofoil and gyrase,scrapea.sarnpk oftht bmw tmd occupants) ham it wwlyred by an enviwnmmullab to deormine its Amu M.. charw%erist rc If there u pod ding of indekrmirurte eo w, mer coupled with a pungent odor,it may be nerawy:to clean the textile media.(Eumve dw ing will retard mmfwa- tion. Only clean as often as necmwa c)The trxtilu xwdia hangs in individual Avo,and these sheers earl lie pulled out for cleaning(if necessmy).first remm&V a' Recirrrelaiing Splitter Vane Norm•I LL Spun LU yll t r 4.iT;• 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 3° of the flow-through port of the baffle or when Use a hose with spray nozzle or Yow-prrrsure°prmure- there is an accumulation of sludge to a depth washer,conneeted to the nearest spigot. Wuh the hiomat within 6"below the flow through port.After the into the un&nbain and it will flow hack to the tank,as long as the Recirculating Splitter Valve has been removed first years measurement of septic tank sludge and when done,replace RSV scum thickness,measurements only need to be taken about every three years,until the thickness- es approach their maximum depths. 1, Remember.clean filter only ifponding and odor occur.