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UNIVERSITY Septic System Management Plan <br /> OF MINNESOTA for Below Grade Systems <br /> Water-Use Appliances and ,3.... <br /> Equipment in the Home <br /> Appliance Impacts on System Management Tips <br /> • Uses additional water. • Use of a garbage disposal is not recommended. <br /> • Adds solids to the tank. • Minimizeardisposalp <br /> - may prevent g age use.Compost instead. <br /> Garbage disposal • Finely-ground y ground solids not settle. • To solids from exiting the tank,have your <br /> Unsettled solids can exit the tank tank pumped mare frequently. <br /> and enter the soil treatment area. • Add an effluent screen to your tank. <br /> • Washing several loads on one day • Choose a front-loader or water-saving top-loader, <br /> uses a lot of water and may overload these units use less water than older models. <br /> your system. • Limit the addition of extra solids to your tank by <br /> • Overloading your system may using liquid or easily biodegradable detergents. <br /> Washing machine prevent solids from settling out in • Install a lint filter after the washer and an effluent <br /> the tank.Unsettled solids can exit screen to your tank <br /> the tank and enter the soil treatment <br /> area. • wash only full loads. <br /> • Limit use of bleach-based detergents. <br /> • Think even—spread your laundry loads throughout <br /> the week. <br /> • The rapid speed of water entering • Install an effluent screen in the septic tank to prevent <br /> 2nd floor laundry the tank may reduce performance. the release of excessive solids to the soil treatment <br /> area. <br /> • Be sure that you have adequate tank capacity. <br /> • Powdered and/or high-phosphorus • Use gel detergents. Powdered detergents may add <br /> detergents can negatively impact the solids to the tank. <br /> Dishwasher performance of your tank and soil • Use detergents that are low or no-phosphorus. <br /> treatment area. • Wash only full loads. <br /> • New models promote"no scraping". • <br /> ScrapeThey have a garbage disposal inside' Scrape your kes anyways to keep undigested <br /> solids out of your septicpticsystem. <br /> • Finely-ground solids may not settle, • Expand septic tank capacity by a factor of h.5. <br /> Grinder pump(in Unsettled solids can exit the tank • Include pump monitoring in your maintenance <br /> home) and enter the soil treatment area. <br /> schedule to ensure that it is working properly. <br /> • Add an effluent screen. <br /> • Large volume of water may • Avoid using other water-use appliances at the same <br /> Large bathtub overload your system. time.For example,don't wash clothes and take a <br /> (whirlpool) • Heavy use of bath oils and soaps can bath at the same time. <br /> impact biological activity in your • Use oils,soaps,and cleaners in the bath or shower <br /> tank and soil treatment area. sparingly. <br /> Clean Water Uses Impacts on System <br /> Management Tips <br /> High-efficiency • Drip may result in frozen pipes • Re-route water into a sum <br /> p pump or out of <br /> furnace during cold weather. the house.Do not route furnace recharge to your <br /> septic system. <br /> Water softener • Salt in recharge water may affect • These sources produce water that is not sewage and <br /> Iron(rater system performance. should not go into your septic system. <br /> Reverse osmosis • Recharge water may hydraulically • Reroute water from these sources to another outlet, <br /> overload the system. such as a dry well,draintile or old drainfteld. <br /> • Water from these sources will likely • When replacing,consider using a demand-based <br /> Surface drainage overload the system, recharge vs.a time-based recharge. <br /> Footing drains <br /> • Check valves to ensure proper operation;have unit <br /> serviced per manufacturer directions <br /> -5- <br />