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/3o C;G/L;e-� - 6-N1 <br />CITY OF ORONO <br />ON -SITE SEWAGE TREATMENT - REPAIRS OR ADDITIONS TO EXISTING SYSTEMS <br />THE FOLLOWING GUIDELINES SHOULD HELP YOU IN REPAIRING YOURFAILING SEPTIC <br />SYSTEM: <br />1. System is baiting because: <br />Poor soil conditions <br />Too much water use for size of system <br />High Water table. <br />Sludge getting into grainfield - tanks need repair/replacement ? <br />Other LDC4-770AJ <br />Unknown; or a combination of the above factors. It is not always possible <br />to determine the exact cause of system failure, but those listed are <br />common factors. <br />2. Tanks - City Code tequiAes 2 .tanks in a noltma.e residenti.at g4ay.cty-6eow system: <br />1-1000 ga ton, 1-750 ga ton pteea,6t eoncAete .tanks in series. These ate minimum <br />sized - you may wish .to instate .eanget .tanks. 16 you have onty 1 .tank, it u <br />noAmaet.y tequiAed .to add a second when %epa.iti.ng a 6a.it ing system. 16 you have <br />2 .tanks but they ate subs.ta ti.a ty undeui.zed (500-600 gattons, dot instance) , <br />it is recommended that .they be tepta.ced. 16 your tep" wit %equiiLe a pump, <br />it shoutd be placed in a .thiAd .tank (500-1000 gatton recommended). <br />System will likely require replacement/addition of 1 or more <br />tanks: <br />EWS i //UG 7", a1y /✓O&-J AJ <br />3. A note about pumps: Pumps and pump eontAotz have out o6 necessity become better <br />designed and mote dutabee in .the tas-t hew yeau. NeaAty one septic system in <br />6ouA i.ns.tatted in Otono make6 use o6 a pump, due .to site conditions. A pump may <br />be needed: - when basement 6foot dna&ts of towes.t seweA tine cue be.eow the at.ea <br />.to be used as dtain6i.etd. - in aft mound systems, which ate used where high water <br />.table of seowey pe.neofating soils ate 6ocnd. <br />There are essentiae.ey two .types o6 pwnps used in septic systems apptications: <br />1. E66tuent pumps - pump only P.iqu.ids, notmatty used a6.teA the second septic <br />.tank, of Got faundny .i.n .the basement; and <br />2. Gti.ndet of solids -handling pumps, used 6or basement -toilets and sometimes <br />.in,sta ted in an outsie sump, which pump sewage up .to septic .tanks on <br />high ground. <br />Pump 6ai uAes in the past have been due mos.tey .to switch 6aitunes (coAAosi.on <br />of weati.ng out) and etecthie connection co4Aos.ion. Both 06 -these ptobtems <br />have been reduced by use o6 co"osivn-tesis.ten.t 6eoa.t switches and :onnection <br />boxes. White pump 6adALAes ate Bess common .than in the past, a high water <br />aeaAm costing apptox,imatety $75-$100 is ,tonmatty tequ Aed whehe a pump is used. <br />I.t's wete won.th .the pAi.ce i.6 it eaves you a costti( basement ceeanup. <br />Repairs to system will likely require a pump, including a pump tank <br />and alarm system. <br />Page 1 o6 3 <br />