The Village of Hoffman Estates reports an average chlorine level of 1.2 parts per million, with a range of 1.0 to 1.5, in its 2025 Water Quality Report. The limit the report lists is 4. So the water is within the limit, and the question is whether you want less chlorine at the shower.
This guide covers what the report says, what filters do, and what they do not. Questions about your own plumbing? Call (630) 822-9290 and we will help.
What is in Hoffman Estates tap water
The Village buys Lake Michigan water from the City of Chicago, and it has been the sole source for residents since 1985. The 2025 report, published in May 2026, states no drinking water quality violations that year.
| Item | What the report lists |
|---|---|
| Source | Lake Michigan water bought from Chicago |
| Chlorine | 1.2 ppm average, range 1.0 to 1.5, limit 4 |
| Lead | 0 sites over the action level in 2025 |
| Lead service lines | Village inventory found none |
| Violations | None for drinking water quality in 2025 |
| Hardness | Not printed in the report |
Notice the last row. The Village report does not give a hardness figure, so we cannot tell you whether your water is hard. If scale on fixtures bothers you, test your tap or ask Public Works at 847-490-6800 about water testing.
What a shower filter does
Most shower filters are small cartridges that screw between the shower arm and the head. They contain media such as KDF or vitamin C that reacts with chlorine. Results vary by product, water temperature and how long the cartridge has been in use.
Many people choose one for reasons of comfort. They find the smell of chlorine bothersome, or they feel their skin and hair are dry after a shower. Those are personal experiences, and results differ from person to person.
The report only tells us the chlorine is present and within limits. It does not say a shower filter will change how your skin feels. Call (630) 822-9290
What a shower filter does not do
Be realistic about the limits. A shower filter is not a water softener, and it will not remove hardness minerals. It will not fix low water pressure either.
It is also not a fix for a plumbing problem. If you have brown water, a metallic taste or a sudden change in smell, the cause may be inside your pipes or water heater. A filter hides symptoms, and that can delay finding a real problem.
Our water softener and filtration page explains the whole-house options for hardness and filtering all outlets. A shower head cartridge only treats the shower.
Hard water or chlorine, which is bothering you
People often blame chlorine for effects that hard water causes. White crust on the shower head, spotted glass and soap that does not lather point to hardness. A strong swimming-pool smell points to chlorine.
Quick check
- Crusty white buildup on the head means minerals, not chlorine
- A pool-like smell in hot steam points to chlorine
- Weak flow from a clean head may mean a clogged aerator or pressure issue
- Rotten egg or musty smell may come from the water heater, not the supply
If you are guessing, test before spending money. The report's missing hardness number is exactly why a test helps.
How to install a shower filter safely
This is one of the easier DIY jobs in a bathroom. Plan on about 10 minutes. Keep the steps simple so you do not damage the shower arm.
- Unscrew the old shower head by hand, or with a cloth and wrench if stuck.
- Clean the threads on the shower arm and remove old tape.
- Wrap the arm threads with plumber's tape, clockwise.
- Screw on the filter by hand, then the shower head.
- Run the water and check for leaks at each joint.
Do not use a wrench with force on the shower arm. It is connected to a pipe inside the wall, and twisting it can crack a fitting. If it moves or leaks inside the wall, stop. Call (630) 822-9290
Before you buy one
Read the product label for the claims it makes and the flow rate it supports. Check that the filter fits a standard shower arm and that it will not cut your water pressure to a trickle. Look for a cartridge you can replace instead of a sealed unit you throw away.
A filter that costs little but needs frequent replacement can add up over a year. Compare the replacement schedule and the cartridge price, not only the first purchase. If you rent, ask your landlord before changing fixtures.
Look for a stated test standard on the packaging, because a label that only says it removes chlorine tells you little. A filter that names no standard it was tested to is an unproven purchase.
Changing the cartridge
Cartridges wear out. Follow the maker's replacement schedule, and mark the date on the cartridge or your calendar. An old cartridge can lose effectiveness and can hold moisture.
Replacing the cartridge is usually a simple twist-off job. If the head will not come off, soak the joint with warm water and a towel before trying again. Never force a stuck fitting against the wall.
Lake Michigan water and what it means for your filter
The Village's 2025 Water Quality Report lists chlorine as the disinfectant and does not mention chloramine, so we describe the Village supply as chlorinated only. Because shower filters are marketed for chlorine, that is the measurable thing in the report they might affect.
The Village states it has found no lead service lines, and Public Works can test for lead at 847-490-6800. The inventory is available at the Public Works Center, 2305 Pembroke Avenue. If you are worried about drinking water, a shower head cartridge is the wrong tool, so call the Village.
Filter at the shower or at the main
A shower filter treats one outlet. A whole-house system treats the water at the main, which also covers the kitchen and laundry. It needs plumbing work, and that makes it a different job.
If your problem is hardness or you want filtered water everywhere, ask about a whole-home option. If you only care about the shower, a head cartridge can be a low-effort experiment. Either way, our plumbing installation team can add shutoffs, bypasses or fittings when a filter needs plumbing.
When to call a plumber
Call a plumber if the shower arm leaks inside the wall, the valve drips, or pressure drops after a filter goes on. Call too if you want a whole-house filter, a softener, or a bypass at the main. Those touch the water supply and need the right fittings.
We are licensed and insured, and we can explain what a system would involve before work starts. Call (630) 822-9290 with your questions. We also serve nearby Schaumburg, where some addresses share the 60195 ZIP with Hoffman Estates.
Yes. The Village's 2025 Water Quality Report lists chlorine at an average of 1.2 ppm, with a range of 1.0 to 1.5 and a limit of 4.
No. Shower filters target chlorine, not hardness minerals. The Village report does not print a hardness figure, so test your tap if you want to know.
The Village reports an inventory finding no lead service lines, and Public Works at 847-490-6800 can arrange lead testing.
Follow the manufacturer's schedule, because it varies by product. A cartridge kept past its life treats less and can hold moisture.
No. A shower filter treats only the shower, while a whole-house system treats water at the main and needs plumbing work.