SEPTIC TANKS DO'S AND DON'TS

What you put in your septic tank will affect its ability to do its job considerably. For instance, coffee grounds and septic systems don’t mix. By educating everybody in your home about what’s acceptable and what’s not for your septic tank, you can save yourself a lot of headaches and money, prolong the life of your septic system and protect the health of your property, family and the environment.


Here are some things you should never put in your septic tank, and some do’s and don’ts for your septic tank.


1. DO ENLARGE YOUR SEPTIC SYSTEM IF NEEDED

If you have plans to add on an addition to your home that will add over 15 percent to the floor area of your home, will increase the number of plumbing fixtures or increase the number of bedrooms, you might need to enlarge your septic system.


2. DON’T PUT HAZARDOUS WASTE INTO THE SYSTEM

At all costs, do not put hazardous substances into the system. Never put paint, paint thinners, gasoline or motor oil into your septic system. This is the “kiss of death” to a septic tank.


3. DO LIMIT THE NUMBER OF SOLIDS

Too many solids flushed down your toilet will make your septic tank fill up very fast. You should not put these items into your commode:


Cat litter

Coffee grounds

Cigarette butts

Dental floss

Disposable diapers

Earplugs

Sanitary napkins or tampons

Never flush coffee grounds down your toilet if you have a septic tank.


As a blanket guideline, avoid placing items into the system that don’t quickly decompose.


4. DON’T PUT ANYTHING NON-BIODEGRADABLE IN YOUR SEPTIC SYSTEM

Don’t put things that aren’t biodegradable into your septic tank system such as:


Cigarette butts

Disposable diapers

Paper towels

Plastics

Sanitary napkins or tampons


5. DO INSTALL AN EFFLUENT FILTER

Make sure you install an effluent filter on your septic tank which helps decrease how many solids leave the tank and increases your system’s lifespan.


6. DON’T PUT GREASE OR FAT INTO THE SYSTEM

It may surprise you, but grease and oil can spoil a septic system by clogging up the drain field and polluting the surrounding soil. Polluted soil cannot absorb and process liquids from your system. You could have to replace your septic tank system if you incur serious issues.


7. DO RUN FULL DISHWASHER AND WASHING MACHINE LOADS

Run dishwashers and washing machines only with full loads. Alternatively, choose the right washing machine load size. You’ll waste both energy and water if you wash small laundry loads with large quantities of water.


8. DON’T PUT ANY CHEMICALS INTO YOUR SYSTEM

Don’t put chemicals down the drain such as:


Gasoline

Insect or weed killers

Oil

Photographic chemicals

Paint thinners

Solvents

These can poison your septic tank, potentially threatening the water supply for your entire neighborhood.

By Aaron Helmer • September 9, 2026
A septic tank is designed to collect and treat wastewater from your home, but it cannot make every solid disappear. Over time, waste accumulates inside the tank and must be professionally removed. Because the tank is underground, homeowners may assume everything is working properly as long as their toilets flush and drains continue flowing. Unfortunately, an overdue septic tank may not show obvious symptoms until accumulated waste begins affecting the rest of the system.  Understanding what happens inside your tank can help you avoid sewage backups, drainfield damage, and unexpected repair costs.
Wet leaves on a black metal septic grate over mossy ground.
By Aaron Helmer • September 1, 2026
Prepare your septic system for colder weather with practical fall maintenance tips from Helmer Septic, serving Cary, McHenry County, and nearby Illinois communities.
October 8, 2025
Preparing Your Septic System for Winter in Cary, IL When temperatures drop in Cary, IL, homeowners start thinking about winterizing sprinklers, sealing driveways, and cleaning gutters — but there’s one system that’s often overlooked: your septic system. Cold weather, frozen ground, and heavy snow can cause septic issues that lead to backups, odors, or system failure.At Helmer Septic, we’ve helped countless Illinois homeowners prevent winter septic problems through smart preparation and professional service. If you’ve been searching “septic maintenance near me” or “winter septic prep near you,” here’s what you need to know. 1. Pump Before the Freeze If your tank is close to full, cold weather can make it harder for bacteria to process waste efficiently. The best time to schedule septic tank pumping in Cary, IL is before the first deep freeze. Regular pumping ensures solids don’t build up and prevents system overload during the winter months when the ground is frozen and repairs become difficult. Searching “septic pumping near me” this time of year? Helmer Septic’s local team can get you on the schedule quickly before the cold hits. 2. Insulate Your Septic System A frozen septic line can stop everything in its tracks. Insulating your system — especially around the tank and drainfield area — helps protect it from freezing temperatures. You can use straw, mulch, or a light layer of leaves over the drainfield (without compacting it). Avoid heavy materials or parking vehicles over it, which can compress the soil and block airflow. If you’re not sure how to protect your system, our septic maintenance and repair experts near you in Cary, IL can inspect your setup and give you a winter-readiness plan. 3. Watch for Signs of Freezing Winter septic problems aren’t always dramatic. Here are a few early signs your system may be struggling: Slow-draining sinks or tubs Gurgling sounds from plumbing Foul odors near drains or outside Standing water or frozen ground above your tank If you notice any of these, it’s time to call Helmer Septic in Cary, IL for a professional inspection. We handle septic repairs near me fast — even in cold weather. 4. Schedule Preventive Maintenance The best way to avoid winter issues is through regular septic maintenance near you. Our technicians check baffles, lids, and filters to make sure everything’s sealed tight and working properly before the deep freeze sets in. If you have an aeration system, we’ll make sure your blower and air lines are protected from moisture and ice. A small tune-up now can prevent big problems later. 5. Protect Commercial Septic Systems Too If you own a business in Cary, Crystal Lake, or Algonquin, don’t forget your commercial septic system. Frozen lines or backed-up tanks can shut down your operation in the middle of your busy season. Our commercial septic services near you include inspections, pumping, and maintenance programs tailored for restaurants, offices, and industrial properties — all designed to prevent downtime. Why Winter Prep Matters Cold temperatures can slow down bacterial activity inside your tank, cause pipes to freeze, and even create blockages in the drainfield. Preventive care not only protects your home or business but also saves money — emergency repairs in frozen ground can be costly and time-consuming. By investing in winter septic maintenance now, you’ll enjoy: Fewer unexpected clogs and backups Better year-round performance Longer system lifespan Peace of mind during Cary’s coldest months Schedule Your Winter Septic Service in Cary, IL Winter-proof your septic system before it’s too late. Call Helmer Septic today for septic maintenance, repair, or pumping in Cary, IL , and surrounding communities. We proudly serve Cary, IL , Crystal Lake , Fox River Grove , Algonquin , and all nearby areas with professional, family-trusted service. Visit www.helmerseptic.com or call 224-888-POOP to schedule your winter septic service near me today.
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