Everything that goes down the drain or out to the curb is your responsibility until it leaves your property.
Two paths for wastewater, one set of rules for each
When you flush a toilet, run a shower, or drain a sink, the water goes somewhere. If you are on a municipal sewer system, it flows through a lateral pipe from your house to a public main, and from there to a treatment plant. If you are on a septic system, it flows into a tank on your property where solids settle and bacteria break them down, and the liquid drains into a leach field in your yard. Both systems work. Both have things that must never go into them. And the consequences of putting the wrong thing down the drain are different depending on which system you have.
On a municipal system, grease, wipes, and chemicals can clog the lateral, cause a backup into your home, or damage the treatment plant downstream. On a septic system, the consequences are more immediate and more personal: the wrong things kill the bacteria that make the system work, and a failed septic system is one of the most expensive household repairs there is.
What must never go down
The list is the same for both systems, with septic owners needing to be even more careful:
- Cooking grease or oil
- Wipes of any kind, including those labeled flushable
- Paint, solvents, or chemical cleaners in quantity
- Medications
- Coffee grounds and food scraps (unless you have a garbage disposal on sewer)
- Feminine hygiene products
What leaves in the trash
The other outflow from your home is solid waste: trash, recycling, and the category most people handle poorly, household hazardous waste. Old paint, batteries, motor oil, pesticides, cleaning solvents, and expired medications all require disposal paths that are not the regular trash can and not the drain. Every county has a hazardous waste disposal program, but most households have never used one, and the materials accumulate in garages and under sinks until someone moves or cleans out the house.
A household that knows what goes down the drain, what goes in the bin, and what needs a special trip has solved three problems most people never think about until they become expensive.
What the action step checks
The readings cover sewer and septic systems in detail, including maintenance schedules for septic owners, and household waste management including hazardous waste disposal. The action step asks you to record whether you are on sewer or septic, note your septic tank details if applicable, and then inventory the household hazardous materials currently in your home. That check often surprises people: the half-empty paint cans, the old batteries in a drawer, the motor oil from three oil changes ago. Knowing what you have and how to dispose of it is the last piece of the waste layer of your Utility Profile.
The reading for this module
Read as many as you need. The first covers drains and wastewater; the second covers trash, recycling, and hazardous waste.
Map what leaves your house and how.
Record whether you are on municipal sewer or a private septic system. If septic, note the tank location, size if known, and last pump date. Then check under your kitchen sink and in your garage or utility area: list any household hazardous materials you find and note whether you know how to dispose of each one properly.