Operation and Maintenance of Septic Systems: Protect Your Investment
Please turn off or silence your cell phone Thanks!
Operation and Maintenance of Septic Systems: Protect Your Investment <ul><li>http://septic.umn.edu </li></ul><ul><li>Sara ...
Operation and Maintenance of Septic Systems: Protect Your Investment Doug Malchow Extension Educator On-Site Sewage Treatm...
<ul><li>Professional Training – Designers,  Inspectors, Pumpers, Installers </li></ul><ul><li>Research and Demonstration <...
Why Are We Here? <ul><li>Learn how to use the Homeowner Operation and Maintenance Education (HOME) curriculum </li></ul><u...
<ul><li>These materials were developed by the  </li></ul><ul><li>Onsite Sewage Treatment Program  </li></ul><ul><li>at the...
Before Session <ul><li>Know material </li></ul><ul><li>Know location of venue </li></ul><ul><li>Know venue </li></ul><ul><...
Beginning session <ul><li>Turn down lights to direct attention to screen-  </li></ul><ul><li>Can you hear me? </li></ul><u...
Septic System Owner’s Guide
Iowa Rules & Septic Systems <ul><li>Iowa Administrative Code (IAC) 567, Chapters 68 and 69 </li></ul><ul><li>Undergoing an...
Why Are We Here? <ul><li>To learn how a septic system works </li></ul><ul><li>To potentially save  </li></ul><ul><li>you  ...
Home Management tips <ul><li>Tank pumping </li></ul><ul><li>Bathrooms </li></ul><ul><li>Kitchen </li></ul><ul><li>Laundry ...
Typical water use <ul><li>150 gallons per day per bedroom </li></ul><ul><ul><li>Assumes 2 people per bedroom </li></ul></u...
Definitions <ul><li>Pathogens: Disease-causing organisms, such as viruses, protozoa, and bacteria. Often measured as fecal...
WHAT IS SEWAGE? Used water
What do we add to the water? <ul><li>Pathogens </li></ul><ul><ul><li>Virus, Bacteria (Human health)  </li></ul></ul><ul><l...
All wastewater must be treated
Anatomy of a Septic System <ul><li>Plumbing : wastewater collection </li></ul><ul><li>Septic tank : primary treatment </li...
Septic Tank
System Components Source Tank Drainfield Treatment in Soil Saturated Zone or Confining Layer Well 3 feet
Mound Drainfield Saturated Zone or Confining Layer Distribution Pipes  Rock Topsoil Sand 3 feet
Mound System Slightly more “advanced”: electricity required   Source Septic Tank Soil Pump Tank Sand
Typical Sand Filter <ul><li>Most typically constructed on-site </li></ul><ul><li>Use clean, coarse sand and washed rock </...
Pretreatment Units Source Drainfield Saturated Zone or Confining Layer Well Septic Tank Pretreatment Unit
Peat Filter Peat Filter
Textile Filter
Aerobic Treatment Unit
System type  based upon soil borings for characteristics and  soil conditions <ul><li>System size  based upon: </li></ul><...
What Kind of System is Bad (failing)? <ul><li>Backup into home </li></ul><ul><li>Leaky tanks </li></ul><ul><li>Surfacing t...
Leaky Tanks
A Surfacing System: An imminent health threat
Surfacing Systems
Inadequate Vertical Separation Source Tank Drainfield Treatment in Soil Saturated zone or confining layer Well 1 foot
System Components Source Tank Drainfield Treatment in Soil Saturated zone or confining layer Well 3   feet
Where are pathogens treated ? <ul><li>Tank?  Soil?  How do they die? </li></ul>
Pathogens - captured by the soil Soil  is  Sticky Electrical  charges
Aerobic  Soil  bacteria  snacks! Held  long  enough  to  starve!
Treatment Performance of Soil: Fecal Coliform Removal Source: Onsite Sewage Treatment Program Manual Backgrd. Backgrd. - 1...
Where are nutrients treated? Tank? Soil? What happens to them?
Where are nutrients treated? <ul><li>Phosphorus </li></ul><ul><ul><li>Soil:  </li></ul></ul><ul><ul><ul><li>Attach to soil...
Where are solids treated? Organics and Inorganics Tank? Soil? What happens to them?
Septic Tank: Primary Treatment <ul><li>Job of tank: catch the solids </li></ul><ul><ul><li>Decompose organic solids </li><...
Septic Tank
Where are chemicals, cleaners, & medications treated? <ul><li>2 issues: </li></ul><ul><li>Not many are destroyed in tank o...
Common Causes of Problems <ul><li>Overloading the System </li></ul><ul><ul><li>Water </li></ul></ul><ul><ul><li>Organics <...
Home Management tips <ul><li>Minimize water use </li></ul><ul><li>Tank pumping </li></ul><ul><li>Bathrooms </li></ul><ul><...
Where does it come from? <ul><li>Water use (per cent  </li></ul><ul><li>of  total) </li></ul><ul><ul><li>Bathroom  </li></...
Tank Pumping <ul><li>Removes accumulated sludge and scum layers </li></ul><ul><li>Done by licensed “Commercial Septic Tank...
Tank Pumping Continued <ul><li>Remove all scum sludge and liquid from the tank </li></ul><ul><li>Flushing and backflushing...
Septic Tank
How Often? <ul><li>As needed – scum or sludge build up </li></ul><ul><li>Impacted by water & product use </li></ul><ul><li...
Additives:  Not needed!! <ul><li>Starters  - Bacteria are abundant in existing wastewater </li></ul><ul><li>Feeders  – Was...
How to Hire a Pumper <ul><li>Word of mouth - referrals </li></ul><ul><li>List of licensed pumpers from the local unit of g...
Screens and  Filters? <ul><li>Effluent screens on tanks: </li></ul><ul><ul><li>Prevents suspended solids from leaving the ...
Toilet <ul><li>Low flow – High quality </li></ul><ul><li>Leaking problems </li></ul><ul><ul><li>Gaskets & “running” </li><...
Bathing <ul><li>Leaks </li></ul><ul><li>Low flow </li></ul><ul><li>Cleaners </li></ul><ul><ul><li>Shower-clean type hard o...
Schedule Laundry <ul><li>Spread out loads – </li></ul><ul><ul><li>Think even </li></ul></ul><ul><ul><li>throughout week </...
Soap <ul><li>Powdered – Not recommended </li></ul><ul><ul><li>Inorganic fillers </li></ul></ul><ul><ul><li>Fine particles ...
Water softener recharge water <ul><li>Does not require treatment </li></ul><ul><li>Impact : </li></ul><ul><ul><li>Adds wat...
Softener Recharge Solution Example <ul><li>Flex Tube </li></ul><ul><li>Grass </li></ul><ul><li>Soil </li></ul><ul><li>Land...
Other Sources of Water That Can Overload a System (and  don’t  need treatment) <ul><li>Sump pump/tile line discharge </li>...
Odors <ul><li>Outside : </li></ul><ul><ul><li>Pump tank– solves most </li></ul></ul><ul><ul><li>Still? Raise vent stack </...
Continual  traffic  is  a  problem
Soil Treatment System Maintenance <ul><li>Compaction is BAD – keep traffic off system </li></ul><ul><li>Establish vegetati...
Soil Treatment System Maintenance <ul><li>Replace cracked or missing inspection pipe caps </li></ul><ul><li>Channel rain a...
 
 
 
Freezing of Septic Systems <ul><li>Causes of Freezing  – lack of cover, compaction, irregular system use, leaking plumbing...
Landscaping
Photo:  Look for greener stripes
Installation Flexibility
 
 
Questions? http://septic. umn.edu  (no www in front) “Info for Homeowners” or “Publications” (on right side of page)
System type depends on the soil redoximorphic features
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  • HOME Iowa / Operation and Maintenance of Septic Systems: Protect Your Investment

    1. 1. Operation and Maintenance of Septic Systems: Protect Your Investment
    2. 2. Please turn off or silence your cell phone Thanks!
    3. 3. Operation and Maintenance of Septic Systems: Protect Your Investment <ul><li>http://septic.umn.edu </li></ul><ul><li>Sara Christopherson </li></ul><ul><li>State Extension Specialist </li></ul><ul><li>Onsite Sewage Treatment Program </li></ul><ul><li>612-625-7243 </li></ul><ul><li>[email_address] </li></ul>Doug Malchow Extension Educator OnSite Sewage Treatment Program 507-280-5575 [email_address]
    4. 4. Operation and Maintenance of Septic Systems: Protect Your Investment Doug Malchow Extension Educator On-Site Sewage Treatment Program 507-280-5575 [email_address] http://septic.umn.edu (no www in front) Click on “Homeowner Information”
    5. 5. <ul><li>Professional Training – Designers, Inspectors, Pumpers, Installers </li></ul><ul><li>Research and Demonstration </li></ul><ul><li>Homeowner Operation & Maintenance </li></ul><ul><li>Small Community Wastewater Solutions </li></ul>
    6. 6. Why Are We Here? <ul><li>Learn how to use the Homeowner Operation and Maintenance Education (HOME) curriculum </li></ul><ul><li>Discuss “good” teaching methods </li></ul><ul><li>Discuss various venues to use HOME </li></ul><ul><li>Practice and discuss HOME curriculum </li></ul>
    7. 7. <ul><li>These materials were developed by the </li></ul><ul><li>Onsite Sewage Treatment Program </li></ul><ul><li>at the University of Minnesota </li></ul><ul><li>and are the collective effort of numerous individuals. </li></ul><ul><li>© 2007, Regents of the University of Minnesota. </li></ul><ul><li>All rights reserved. </li></ul>
    8. 8. Before Session <ul><li>Know material </li></ul><ul><li>Know location of venue </li></ul><ul><li>Know venue </li></ul><ul><li>Arrive early </li></ul><ul><li>Prepare emergency kit – white sheet, extension cords, duct tape, tacks, etc. </li></ul><ul><li>Sign-in sheet? </li></ul><ul><li>Utilize observer the first few times you present </li></ul><ul><li>Don’t assume projector works </li></ul>
    9. 9. Beginning session <ul><li>Turn down lights to direct attention to screen- </li></ul><ul><li>Can you hear me? </li></ul><ul><li>Thank sponsors, restroom location, refreshments? </li></ul><ul><li>Use slides as prompts for topics – introduction, topics, restrooms, cell phones </li></ul><ul><li>Turn up lights so attendees can take notes </li></ul><ul><li>Address questions throughout presentation </li></ul><ul><li>Slow down, it gives attendees chance to think bout what you are saying, avoid ahhs </li></ul><ul><li>Use humor </li></ul>
    10. 10. Septic System Owner’s Guide
    11. 11. Iowa Rules & Septic Systems <ul><li>Iowa Administrative Code (IAC) 567, Chapters 68 and 69 </li></ul><ul><li>Undergoing an update </li></ul><ul><li>local boards of health have primary responsibility for regulation of sewer systems serving less than 15 people, DNR larger systems </li></ul><ul><li>Counties have right to be more restrictive </li></ul>
    12. 12. Why Are We Here? <ul><li>To learn how a septic system works </li></ul><ul><li>To potentially save </li></ul><ul><li>you money by </li></ul><ul><li>following some </li></ul><ul><li>simple practices </li></ul><ul><li>Protect human </li></ul><ul><li>health and environment </li></ul>
    13. 13. Home Management tips <ul><li>Tank pumping </li></ul><ul><li>Bathrooms </li></ul><ul><li>Kitchen </li></ul><ul><li>Laundry </li></ul><ul><li>Other water using </li></ul><ul><li>devices </li></ul><ul><li>Soil treatment system </li></ul><ul><li>Freezing </li></ul><ul><li>Landscaping </li></ul>
    14. 14. Typical water use <ul><li>150 gallons per day per bedroom </li></ul><ul><ul><li>Assumes 2 people per bedroom </li></ul></ul><ul><li>Used to size systems </li></ul>
    15. 15. Definitions <ul><li>Pathogens: Disease-causing organisms, such as viruses, protozoa, and bacteria. Often measured as fecal coliform bacteria </li></ul><ul><li>Aerobic: Life that requires the presence of oxygen </li></ul><ul><li>Anaerobic: Life that does not require the presence of oxygen </li></ul><ul><li>Retention time: the amount of time sewage spends in the septic tank </li></ul>
    16. 16. WHAT IS SEWAGE? Used water
    17. 17. What do we add to the water? <ul><li>Pathogens </li></ul><ul><ul><li>Virus, Bacteria (Human health) </li></ul></ul><ul><li>Nutrients </li></ul><ul><ul><li>Phosphorus (Environment; weed & algal growth) </li></ul></ul><ul><ul><li>Nitrogen (Blue Baby Syndrome, environment) </li></ul></ul><ul><ul><li>Micro-nutrients (Human health and the environment) </li></ul></ul><ul><li>Solids – </li></ul><ul><ul><li>Organic (biological oxygen demand (BOD) and its impact on the environment) </li></ul></ul><ul><ul><li>Inorganics </li></ul></ul><ul><li>Chemicals </li></ul><ul><ul><li>Cleaners </li></ul></ul><ul><ul><li>Water treatment </li></ul></ul><ul><ul><li>Medications </li></ul></ul>
    18. 18. All wastewater must be treated
    19. 19. Anatomy of a Septic System <ul><li>Plumbing : wastewater collection </li></ul><ul><li>Septic tank : primary treatment </li></ul><ul><li>Soil treatment </li></ul><ul><li>system : </li></ul><ul><li>final treatment </li></ul><ul><li>and dispersal </li></ul>Source Septic tank Soil treatment system Reserve area
    20. 20. Septic Tank
    21. 21. System Components Source Tank Drainfield Treatment in Soil Saturated Zone or Confining Layer Well 3 feet
    22. 22. Mound Drainfield Saturated Zone or Confining Layer Distribution Pipes Rock Topsoil Sand 3 feet
    23. 23. Mound System Slightly more “advanced”: electricity required Source Septic Tank Soil Pump Tank Sand
    24. 24. Typical Sand Filter <ul><li>Most typically constructed on-site </li></ul><ul><li>Use clean, coarse sand and washed rock </li></ul><ul><li>Lateral and collector lines are perforated </li></ul>
    25. 25. Pretreatment Units Source Drainfield Saturated Zone or Confining Layer Well Septic Tank Pretreatment Unit
    26. 26. Peat Filter Peat Filter
    27. 27. Textile Filter
    28. 28. Aerobic Treatment Unit
    29. 29. System type based upon soil borings for characteristics and soil conditions <ul><li>System size based upon: </li></ul><ul><li>number of bedrooms, percolation test results, soil type (sand, loam, clay, and water use (i.e. garbage disposal) </li></ul><ul><li>Type of soil (sand, loam, clay) </li></ul><ul><li>Amount of water used, garbage disposal, bedrooms. </li></ul>
    30. 30. What Kind of System is Bad (failing)? <ul><li>Backup into home </li></ul><ul><li>Leaky tanks </li></ul><ul><li>Surfacing to </li></ul><ul><li>ground </li></ul><ul><li>Surfacing to water body </li></ul><ul><li>Inadequate vertical separation to saturated zone or confining layer </li></ul>
    31. 31. Leaky Tanks
    32. 32. A Surfacing System: An imminent health threat
    33. 33. Surfacing Systems
    34. 34. Inadequate Vertical Separation Source Tank Drainfield Treatment in Soil Saturated zone or confining layer Well 1 foot
    35. 35. System Components Source Tank Drainfield Treatment in Soil Saturated zone or confining layer Well 3 feet
    36. 36. Where are pathogens treated ? <ul><li>Tank? Soil? How do they die? </li></ul>
    37. 37. Pathogens - captured by the soil Soil is Sticky Electrical charges
    38. 38. Aerobic Soil bacteria snacks! Held long enough to starve!
    39. 39. Treatment Performance of Soil: Fecal Coliform Removal Source: Onsite Sewage Treatment Program Manual Backgrd. Backgrd. - 100 1,000 to 1 million 1 million to 100 million Fecal Coliform (colonies/100ml; less than ½ cup) Three Feet of Soil Treatment One Foot of Soil Treatment Septic Tank Effluent Raw Sewage Component of Sewage
    40. 40. Where are nutrients treated? Tank? Soil? What happens to them?
    41. 41. Where are nutrients treated? <ul><li>Phosphorus </li></ul><ul><ul><li>Soil: </li></ul></ul><ul><ul><ul><li>Attach to soil particles </li></ul></ul></ul><ul><li>Nitrogen </li></ul><ul><ul><li>Soil: </li></ul></ul><ul><ul><ul><li>Lost to air </li></ul></ul></ul><ul><ul><ul><li>Dilution </li></ul></ul></ul><ul><ul><ul><li>Used by plants </li></ul></ul></ul>
    42. 42. Where are solids treated? Organics and Inorganics Tank? Soil? What happens to them?
    43. 43. Septic Tank: Primary Treatment <ul><li>Job of tank: catch the solids </li></ul><ul><ul><li>Decompose organic solids </li></ul></ul><ul><ul><li>Store inorganic solids </li></ul></ul><ul><li>Layers in tank </li></ul><ul><ul><li>Scum layer: floating soap, grease, toilet paper, etc </li></ul></ul><ul><ul><li>Liquid layer: water, liquid, and suspended solids </li></ul></ul><ul><ul><li>Sludge: heavy organic and inorganic materials in the bottom of the tank </li></ul></ul><ul><li>Anaerobic bacteria breakdown organic solids </li></ul>
    44. 44. Septic Tank
    45. 45. Where are chemicals, cleaners, & medications treated? <ul><li>2 issues: </li></ul><ul><li>Not many are destroyed in tank or soil treatment </li></ul><ul><li>Can destroy good tank and soil bacteria </li></ul>
    46. 46. Common Causes of Problems <ul><li>Overloading the System </li></ul><ul><ul><li>Water </li></ul></ul><ul><ul><li>Organics </li></ul></ul><ul><li>Lack of maintenance </li></ul><ul><li>Excessive chemicals </li></ul><ul><li>Wrong choice of system design </li></ul>
    47. 47. Home Management tips <ul><li>Minimize water use </li></ul><ul><li>Tank pumping </li></ul><ul><li>Bathrooms </li></ul><ul><li>Kitchen </li></ul><ul><li>Laundry </li></ul><ul><li>Other water using </li></ul><ul><li>devices </li></ul><ul><li>Soil treatment system </li></ul><ul><li>Freezing </li></ul><ul><li>Landscaping </li></ul>
    48. 48. Where does it come from? <ul><li>Water use (per cent </li></ul><ul><li>of total) </li></ul><ul><ul><li>Bathroom </li></ul></ul><ul><ul><ul><li>Toilet = 27% </li></ul></ul></ul><ul><ul><ul><li>Bathing = 17% </li></ul></ul></ul><ul><ul><li>Laundry = 22% </li></ul></ul><ul><ul><li>Kitchen = 17% </li></ul></ul><ul><ul><li>Leaks and other = 17% </li></ul></ul>
    49. 49. Tank Pumping <ul><li>Removes accumulated sludge and scum layers </li></ul><ul><li>Done by licensed “Commercial Septic Tank Cleaner” </li></ul><ul><li>Only allow cleaning from manholes. Never from inspection pipes </li></ul>
    50. 50. Tank Pumping Continued <ul><li>Remove all scum sludge and liquid from the tank </li></ul><ul><li>Flushing and backflushing liquids is required </li></ul><ul><li>Check baffles and structural integrity of tank </li></ul><ul><li>Recommended every 3-5 years </li></ul>
    51. 51. Septic Tank
    52. 52. How Often? <ul><li>As needed – scum or sludge build up </li></ul><ul><li>Impacted by water & product use </li></ul><ul><li>Rule of Thumb </li></ul><ul><ul><li>Every 1 to 3 years </li></ul></ul><ul><ul><li>No longer than 3 years without pumping or inspection – state code requirement </li></ul></ul><ul><ul><li>Seasonal home/cabin – same as above! </li></ul></ul><ul><ul><li>New home or remodel: 1 st 3 months – finishing materials are toxic </li></ul></ul><ul><ul><li>New owners – </li></ul></ul><ul><ul><li>start on maintenance program </li></ul></ul>
    53. 53. Additives: Not needed!! <ul><li>Starters - Bacteria are abundant in existing wastewater </li></ul><ul><li>Feeders – Wastewater contains a lot of food for bacteria </li></ul><ul><li>Cleaners – Unnecessary and potentially hazardous </li></ul><ul><li>Never add these products to your system! They can actually damage your soil treatment system. </li></ul>
    54. 54. How to Hire a Pumper <ul><li>Word of mouth - referrals </li></ul><ul><li>List of licensed pumpers from the local unit of government </li></ul><ul><li>Response to interview questions over the phone. Do you: </li></ul><ul><ul><li>Pump through the manhole? </li></ul></ul><ul><ul><li>Backflush? </li></ul></ul><ul><ul><li>Recommend additives? </li></ul></ul><ul><ul><li>How much will it cost? </li></ul></ul><ul><ul><li>Etc. </li></ul></ul>
    55. 55. Screens and Filters? <ul><li>Effluent screens on tanks: </li></ul><ul><ul><li>Prevents suspended solids from leaving the tank </li></ul></ul><ul><ul><li>Requires maintenance </li></ul></ul><ul><li>Washing machine lint filters: </li></ul><ul><ul><li>prevent lint from entering system </li></ul></ul>
    56. 56. Toilet <ul><li>Low flow – High quality </li></ul><ul><li>Leaking problems </li></ul><ul><ul><li>Gaskets & “running” </li></ul></ul><ul><li>Toilet paper – any is fine </li></ul><ul><li>No other products </li></ul><ul><ul><li>Tissue, napkins, butts </li></ul></ul><ul><ul><li>(cigarettes), hair, cotton balls </li></ul></ul><ul><li>Cleaners </li></ul><ul><ul><li>NOT Automatic – Tidy Bowl man </li></ul></ul><ul><ul><li>Small amount with “elbow grease” </li></ul></ul>
    57. 57. Bathing <ul><li>Leaks </li></ul><ul><li>Low flow </li></ul><ul><li>Cleaners </li></ul><ul><ul><li>Shower-clean type hard on system – introduce cleaners everyday. </li></ul></ul><ul><li>Anti-bacterial soaps </li></ul><ul><li>Shaving, bath oils hard on system </li></ul>
    58. 58. Schedule Laundry <ul><li>Spread out loads – </li></ul><ul><ul><li>Think even </li></ul></ul><ul><ul><li>throughout week </li></ul></ul><ul><ul><li>throughout day </li></ul></ul><ul><li>Use low water level setting for small loads </li></ul><ul><li>Keep lint out of system </li></ul>
    59. 59. Soap <ul><li>Powdered – Not recommended </li></ul><ul><ul><li>Inorganic fillers </li></ul></ul><ul><ul><li>Fine particles </li></ul></ul><ul><ul><li>Clay as filler </li></ul></ul><ul><li>Recommend Liquid </li></ul><ul><ul><li>Filler - water </li></ul></ul><ul><ul><li>Only amount needed </li></ul></ul><ul><li>Detergents w/ bleach </li></ul><ul><li>Bleach – limit to ‘as needed’ </li></ul><ul><li>Limit use of liquid fabric softeners </li></ul>
    60. 60. Water softener recharge water <ul><li>Does not require treatment </li></ul><ul><li>Impact : </li></ul><ul><ul><li>Adds water </li></ul></ul><ul><ul><li>Reduces scum layer- grabs it, takes into drainfield </li></ul></ul><ul><ul><li>Salt – can affect concrete (tank) </li></ul></ul><ul><li>Management – </li></ul><ul><ul><li>Discharge to different place old drainfield/cesspool </li></ul></ul><ul><ul><li>Reduce recharge frequency </li></ul></ul>
    61. 61. Softener Recharge Solution Example <ul><li>Flex Tube </li></ul><ul><li>Grass </li></ul><ul><li>Soil </li></ul><ul><li>Landscape Fabric </li></ul><ul><li>River rock </li></ul>
    62. 62. Other Sources of Water That Can Overload a System (and don’t need treatment) <ul><li>Sump pump/tile line discharge </li></ul><ul><li>Lead or other water filters </li></ul><ul><li>Dehumidifier discharge </li></ul><ul><li>High efficiency furnace discharge </li></ul><ul><li>Eves trough runoff </li></ul><ul><li>Dripping faucets/”running toilets” </li></ul><ul><li>Any other sources? </li></ul>
    63. 63. Odors <ul><li>Outside : </li></ul><ul><ul><li>Pump tank– solves most </li></ul></ul><ul><ul><li>Still? Raise vent stack </li></ul></ul><ul><ul><li>Charcoal filter on stack </li></ul></ul><ul><li>Inside : </li></ul><ul><ul><li>Plumbing problem </li></ul></ul><ul><ul><li>May be frozen vent or dry trap </li></ul></ul>
    64. 64. Continual traffic is a problem
    65. 65. Soil Treatment System Maintenance <ul><li>Compaction is BAD – keep traffic off system </li></ul><ul><li>Establish vegetative cover - Grass, mow regularly, no fertilizer, no deep rooted plants near system. Watch for gophers! </li></ul><ul><li>Inspection pipes can be cut to ground level after finished grade is established </li></ul>
    66. 66. Soil Treatment System Maintenance <ul><li>Replace cracked or missing inspection pipe caps </li></ul><ul><li>Channel rain and snow melt runoff away from drainfield </li></ul><ul><li>Inspect regularly for changes </li></ul>
    67. 70. Freezing of Septic Systems <ul><li>Causes of Freezing – lack of cover, compaction, irregular system use, leaking plumbing, cold air into system, poor drainage </li></ul><ul><li>Remedies – figure out why and where; fix the problem (or use tank as a holding tank) </li></ul><ul><li>Prevention – Let your grass grow, mulch (or styrofoam), use extra warm water, fix leaks </li></ul>
    68. 71. Landscaping
    69. 72. Photo: Look for greener stripes
    70. 73. Installation Flexibility
    71. 76. Questions? http://septic. umn.edu (no www in front) “Info for Homeowners” or “Publications” (on right side of page)
    72. 77. System type depends on the soil redoximorphic features

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