Agenda - Planning Commission - 01/07/2016

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UNIVERSITY OF MINNESOTA Septic System Management Plan for Below Grade Systems Water -Use Appliances and Equipment in the Home Appliance Impacts on System Management Tips Garbage disposal • Uses additional water. • Adds solids to the tank. • Finely -ground solids may not settle. Unsettled solids can exit the tank and enter the soil treatment area. • Use of a garbage disposal is not recommend • Minimize garbage disposal use. Compost ins • To prevent solids from exiting the tank, have tank pumped more frequently. • Add an effluent screen to your tank. . ad. your Washing machine • Washing several loads on one day uses a lot of water and may overload your system. • Overloading your system may prevent solids from settling out in the tank. Unsettled solids can exit the tank and enter the soil treatment area. • Choose a front -loader or water -saving top -lo these units use less water than older models. • Limit the addition of extra solids to your to using liquid or easily biodegradable detergen • Install a lint filter after the washer and an effluent screen to your tank • Wash only full loads. • Limit use of bleach -based detergents. • Think even — spread your laundry loads throe. the week. der, by s. ghout 2"d floor laundry • The rapid speed of water entering the tank may reduce performance. • Install an effluent screen in the septic tank to prevent the release of excessive solids to the soil treatment area. • Be sure that you have adequate tank capacity Di shwasher • Powdered and/or high -phosphorus detergents can negatively impact the performance of your tank and soil treatment area. • New models promote "no scraping'. They have a garbage disposal inside. • Use gel detergents. Powdered detergents ma, add solids to the tank. • Use detergents that are low or no-phosphoru . • Wash only full loads. • Scrape your dishes anyways to keep undiges ed solids out of your septic system. Grinder pump (in home) • Finely -ground solids may not settle. Unsettled solids can exit the tank and enter the soil treatment area. • Expand septic tank capacity by a factor of 1. . • Include pump monitoring in your maintenance schedule to ensure that it is working properl . • Add an effluent screen. Large bathtub (whirlpool) • Large volume of water may overload your system. • Heavy use of bath oils and soaps can impact biological activity in your tank and soil treatment area. • Avoid using other water -use appliances at th same time. For example, don't wash clothes and e a bath at the same time. • Use oils, soaps, and cleaners in the bath or shower sparingly. Clean Water Uses Impacts on System Management Tips High -efficiency furnace • Drip may result in frozen pipes during cold weather. • Re-route water into a sump pump or directly out of the house. Do not route furnace recharge to our septic system. Water softener Iron filter Reverse osmosis • Salt in recharge water may affect system performance. • Recharge water may hydraulically overload the system. • These sources produce water that is not sew should not go into your septic system. • Reroute water from these sources to another such as a dry well, draintile or old drainfield ge and outlet, sed e unit Surface drainage Footing drains • Water from these sources will likely overload the system. • When replacing, consider using a demand -b recharge vs. a time -based recharge. • Check valves to ensure proper operation; ha serviced per manufacturer directions 5