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Sources and references

The homeowner checks on our website follow published guidance from public agencies, universities and equipment manufacturers. Each number on the site points to the source below, cited in APA 7th edition style.

  1. Manufacturer Lennox International. (2025, February 4). Outside AC unit not working? https://www.lennox.com/residential/lennox-life/consumer/outside-ac-unit-not-turning-on
  2. Government ENERGY STAR. (n.d.). Heat & cool efficiently. U.S. Environmental Protection Agency. Retrieved October 22, 2026, from https://www.energystar.gov/saveathome/heating-cooling
  3. Government U.S. Environmental Protection Agency. (2026, March 13). Fix a leak week. WaterSense. https://www.epa.gov/watersense/fix-leak-week
  4. Local utility City of Tampa. (2026, October 9). How to check for leaks. Tampa Water Department. https://www.tampa.gov/water/conservation/check-for-leaks
  5. Government U.S. Environmental Protection Agency. (2026, August 17). How to care for your septic system. https://www.epa.gov/septic/how-care-your-septic-system
  6. University extension Jemison, J. M., Jr. (2015). What to do if your septic system fails (Bulletin #7081). University of Maine Cooperative Extension. https://extension.umaine.edu/publications/?p=380
  7. Government U.S. Environmental Protection Agency. (2026, March 11). Resolving septic system malfunctions. https://www.epa.gov/septic/resolving-septic-system-malfunctions
  8. Government Wisconsin Department of Safety and Professional Services. (n.d.). POWTS safety FAQs. Retrieved October 22, 2026, from https://dsps.wi.gov/Documents/Programs/POWTS/FAQSafety.pdf
  9. Manufacturer Lennox International. (2025, August 29). Why is your AC unit freezing up? https://www.lennox.com/residential/buyers-guide/guide-to-hvac/faqs/freezing
  10. Manufacturer Fonda, A. (2025, July 9). AC leaking water? Find out why and what to do. Trane. https://www.trane.com/residential/en/resources/troubleshooting/air-conditioners/ac-leaking-water/
  11. Government U.S. Department of Energy. (n.d.). Air conditioner maintenance. Energy Saver. Retrieved October 22, 2026, from https://www.energy.gov/energysaver/maintaining-your-air-conditioner
  12. University extension University of Minnesota Onsite Sewage Treatment Program. (n.d.). Troubleshooting. Water Resources Center, University of Minnesota. Retrieved October 22, 2026, from https://septic.umn.edu/troubleshooting
  13. Government Florida Department of Environmental Protection. (2020). Septic system owner’s guide [Brochure]. https://floridadep.gov/sites/default/files/septic-folder-8x11-link3.pdf
  14. Government ENERGY STAR. (n.d.). When is it time to replace? Retrieved October 22, 2026, from https://www.energystar.gov/saveathome/heating-cooling/replace
  15. Government U.S. Environmental Protection Agency. (2026, April 1). Homeowners and consumers: Frequently asked questions. https://www.epa.gov/ods-phaseout/homeowners-and-consumers-frequently-asked-questions
  16. Government ENERGY STAR. (n.d.). 10 tips for hiring a heating and cooling contractor. Retrieved October 22, 2026, from https://www.energystar.gov/saveathome/heating-cooling/10-tips-hiring
  17. University extension Porter, W. A., Cantrell, R. A., Ruppert, K. C., Lee, H.-J., & Benitez, G. (2025, August 27). Energy efficient homes: Air conditioning (FCS3262/FY1026). UF/IFAS Extension. https://ask.ifas.ufl.edu/publication/FY1026
  18. Government U.S. Environmental Protection Agency. (2026, February 18). A brief guide to mold, moisture and your home. https://www.epa.gov/mold/brief-guide-mold-moisture-and-your-home
  19. Manufacturer Fonda, A. (2025, July 25). Mini-split not cooling: Causes and solutions. Trane. https://www.trane.com/residential/en/resources/troubleshooting/ductless-systems/mini-split-not-cooling/
  20. Manufacturer Fonda, A. (2025, July 25). Do mini-splits have filters, and how do I care for them? Trane. https://www.trane.com/residential/en/resources/troubleshooting/ductless-systems/do-mini-splits-have-filters/
  21. Manufacturer Fonda, A. (2025, July 25). Mini-split leaking water: Causes and solutions. Trane. https://www.trane.com/residential/en/resources/troubleshooting/ductless-systems/mini-split-leaking-water/
  22. Manufacturer Fonda, A. (2026, February 19). What is the heat pump defrost cycle? Trane. https://www.trane.com/residential/en/resources/blog/what-is-a-heat-pump-defrost-cycle/
  23. Manufacturer Trane. (2023, October 10). Why your heater smells like it’s burning. https://www.trane.com/residential/en/resources/blog/does-your-heat-smell-like-its-burning/
  24. Government U.S. Consumer Product Safety Commission. (2026, January 23). Keep warm and safe this winter: Tips for using generators, furnaces and space heaters. https://cpsc.gov/Newsroom/News-Releases/2026/Keep-Warm-and-Safe-This-Winter-Tips-for-Using-Generators-Furnaces-and-Space-Heaters
  25. Manufacturer Lennox International. (2026, June 26). What is the best thermostat location for optimal performance and efficiency? https://www.lennox.com/residential/lennox-life/consumer/thermostat-location
  26. University research Withers, C., Jr., Chasar, D., Moyer, N., & Chandra, S. (2002). Performance and impact from duct repair and ventilation modifications of two newly constructed manufactured houses located in a hot and humid climate (FSEC-PF-370-02). Florida Solar Energy Center, University of Central Florida. https://www.fsec.ucf.edu/en/publications/html/FSEC-PF-370-02/index.htm
  27. Government ENERGY STAR. (n.d.). Duct sealing. Retrieved October 22, 2026, from https://www.energystar.gov/saveathome/heating-cooling/duct-sealing
  28. University extension Porter, W. A., Ruppert, K. C., Cantrell, R. A., & Lee, H.-J. (2025, October 21). Energy efficient homes: The duct system (FCS3263/FY1024). UF/IFAS Extension. https://ask.ifas.ufl.edu/publication/FY1024
  29. University extension Lee, H.-J., & Peart, V. (2007, January). Moisture control in your home, part 1: The basics (FCS3256). UF/IFAS Extension. https://journals.flvc.org/edis/article/view/116528
  30. University extension Ruppert, K. C., Porter, W. A., Cantrell, R. A., & Lee, H.-J. (2024, May 22). Energy efficient homes: Indoor air quality and energy (FCS3275/FY1044). UF/IFAS Extension. https://ask.ifas.ufl.edu/publication/FY1044
  31. Local utility Montgomery Township Municipal Sewer Authority. (n.d.). Three warning signs that your sewer line is clogged. Retrieved October 22, 2026, from https://www.mtmsa.org/node/310
  32. University extension Harrison, M. N. (2005). Making simple repairs: Clogged drains (FCS5234-05). University of Florida, IFAS Extension. https://ufdcimages.uflib.ufl.edu/IR/00/00/13/19/00001/FY80700.pdf
  33. University extension Porter, W. A., Ruppert, K. C., & Cantrell, R. A. (2025, September 1). Energy efficient homes: Water heaters (FCS3277/FY1025). UF/IFAS Extension. https://ask.ifas.ufl.edu/publication/FY1025
  34. University extension North Dakota State University Extension. (n.d.). Rotten egg odor only from the hot water tap. Retrieved October 22, 2026, from https://www.ag.ndsu.edu/waterquality/documents/rotten-egg-odor-only-from-the-hot-water-tap
  35. Government U.S. Department of Energy. (n.d.). Tankless or demand-type water heaters. Energy Saver. Retrieved October 22, 2026, from https://www.energy.gov/energysaver/tankless-or-demand-type-water-heaters
  36. University extension Swistock, B. R., Sharpe, W. E., & Robillard, P. D. (2025, May 29). Corrosive water problems. Penn State Extension. https://extension.psu.edu/corrosive-water-problems
  37. Local utility DC Water. (n.d.). Pressure increase and water quality impacts [Flyer]. Retrieved October 22, 2026, from https://www.dcwater.com/sites/default/files/project/documents/pzip_water_quality_flyer.pdf
  38. Local utility Peoples Gas. (2023). Let’s be safe around natural gas pipelines [Brochure]. https://peoplesgas.com/4a70e0/contentassets/3c52de21bb364cd1a9fc424718388f7e/be-safe-around-natural-gas-pipelines-brochure.pdf
  39. Government Pipeline and Hazardous Materials Safety Administration. (2017, May 25). Pipeline leak recognition and what to do. U.S. Department of Transportation. https://www.phmsa.dot.gov/safety-awareness/pipeline/pipeline-leak-recognition-and-what-do
  40. University extension Zhuang, Y., Albertin, A., & Hornsby, A. G. (2023, July 13). Household drinking water testing for public and private water supplies (SL499/SS712). UF/IFAS Extension. https://ask.ifas.ufl.edu/publication/SS712
  41. Government U.S. Environmental Protection Agency. (2025, November 21). CCR information for consumers. https://www.epa.gov/ccr/ccr-information-consumers
  42. Government Pinellas County. (2023, March 8). Private sewer lateral video inspection. https://pinellas.gov/programs/private-sewer-lateral-video-inspection/
  43. Government City of Rolling Meadows Public Works Department. (n.d.). Sanitary sewer problem guide. Retrieved October 22, 2026, from https://cityrm.org/853/Sanitary-Sewer-Problem-Guide
  44. University extension Cornell Cooperative Extension. (n.d.). Your septic systems: What you need to know when buying or selling a house (Fact Sheet SS-4). Retrieved October 22, 2026, from https://albany.cce.cornell.edu/resources/your-septic-system-what-to-know-when-buying-or-selling-a-home
  45. University extension University of Illinois Extension. (n.d.). Buying and selling homes. Retrieved October 22, 2026, from https://extension.illinois.edu/septic-systems/buying-and-selling-homes
  46. Government Florida Department of Health in Pasco County. (n.d.). Onsite sewage treatment & disposal systems (OSTDS). Retrieved October 22, 2026, from https://pasco.floridahealth.gov/programs-and-services/environmental-health/onsite-sewage-disposal/index.html
  47. Government Florida Department of Environmental Protection. (n.d.). Onsite sewage program. Retrieved October 22, 2026, from https://floridadep.gov/water/onsite-sewage
  48. Government Florida Department of Environmental Protection. (2026, September 24). Onsite sewage FAQ – Permitting. https://floridadep.gov/water/onsite-sewage/content/onsite-sewage-faq-permitting
  49. University extension Texas A&M AgriLife Extension & Texas Water Resources Institute. (2019, November). Is your septic system failing? (EM-125). https://twri.tamu.edu/media/4570/em-125-ossf-flyer.pdf
  50. University extension University of Florida Institute of Food and Agricultural Sciences. (n.d.). Your septic system. UF/IFAS Water. Retrieved October 22, 2026, from https://water.ifas.ufl.edu/septic-systems/your-septic-system
  51. Government Florida Department of Health in Hillsborough County. (n.d.). Septic systems. Retrieved October 22, 2026, from https://hillsborough.floridahealth.gov/programs-and-services/environmental-health/septic-systems/index.html

Sources checked October 22, 2026. Agency pages can change; we review these references periodically. These checks help you describe a problem and do not replace a professional diagnosis.

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