WSP Whole House Iron & Sulfur Filter - City Water, Hard

If your water leaves orange-brown stains on sinks and toilets or carries a rotten-egg smell when you run a shower, you’re dealing with iron and sulfur in your city water. This system from Water Softener Plus (WSP) helps reduce those issues before water reaches your taps.

The problem

You’ve probably noticed the telltale signs: orange rings in your toilet tanks, rusty stains on fixtures, or even a sharp sulfur smell, like rotten eggs, especially in your hot water. These issues don’t just look and smell unpleasant—they make cleaning harder and can affect how your water feels and tastes around the house.

Why it’s happening

Iron and sulfur often remain in city water supplies even after municipal treatment. Iron shows up as tiny particles that settle and leave orange-brown stains. Sulfur usually appears as hydrogen sulfide gas, causing that rotten-egg odor you detect when water heats up. A simple water test that measures iron levels and the presence of sulfur compounds confirms if these are the culprits.

What it’s costing you to leave it

Leaving iron and sulfur untreated means stains become tougher to clean over time, settling inside appliances, toilets, and sinks. Your water heater can develop scale buildup faster, shortening its lifespan. Soap and detergent won’t lather well, making laundry less effective and towels feel stiff. Plus, that persistent sulfur smell can linger in your hot water, making everyday use unpleasant.

How this system fixes it

This system uses a two-stage process where the first stage filters iron and sulfur by pulling oxygen into the water to convert dissolved iron and sulfur into solid particles. These particles then get trapped in the filter media, keeping them out of your water. By doing this first, it protects the next stage, which softens the water by swapping out hardness minerals with a gentler alternative. This combination helps your water look, smell, and feel better.

What this system can handle

Designed for city water with moderate iron and sulfur, this two-stage system effectively reduces rusty stains and rotten-egg odors before softening the water. It can treat water for homes with anywhere from one to more than six bathrooms, thanks to three size options matched to your flow and household needs. The system works automatically, backwashing and regenerating as needed, so it stays ready without your constant attention. Its capacity is well-suited to typical city water conditions, providing reliable treatment without frequent servicing.

What you actually get

The system includes two fiberglass-reinforced plastic (FRP) tanks: one for iron and sulfur filtration equipped with a Fleck 2510 SXT air-injection control valve, and the other for water softening with its own Fleck metered softening valve. Both tanks come loaded with the appropriate media for their job. You also get a brine tank for salt regeneration, a bypass valve to isolate the system during service while keeping water flowing to your home, and 10 feet of discharge hose for the drain line. The main pressure vessel carries a lifetime warranty, offering long-term peace of mind.

Is this the right size for you

Choose the size based on your household’s bathroom count and water use: the smallest fits 1-3 baths, the middle size suits 4-6 baths, and the largest handles homes with 6 or more bathrooms. If your water has very high iron or sulfur levels, or your home’s water use is unusually high, you might need a larger or a different system. We offer free sizing help—just send in your water test or describe your symptoms.

Living with it

The system regenerates automatically and requires minimal daily attention. You’ll need to add salt to the brine tank occasionally, roughly every few weeks to months depending on your water use. The included bypass valve makes servicing straightforward, so your plumber can work without interrupting your water supply. Routine maintenance and parts replacement are manageable, with genuine parts available over time.

What it won’t do

This system reduces iron and sulfur in city water but does not remove other contaminants like bacteria, chlorine, or sediment. It also doesn’t handle well water problems such as high manganese or iron bacteria. For those issues, a different or additional treatment would be necessary.

Why buy it from us

Water Softener Plus (WSP) supplies genuine, serviceable components designed to last. Our tanks come with a lifetime warranty, and all parts have ongoing availability so you’re not left with a sealed, disposable unit. We ship free across the U.S. from Tampa, Florida, with no hidden fees. You get real sizing support from experts familiar with water treatment, and a 90-day money-back guarantee for confidence in your purchase.

Included with this system

• Lifetime warranty on the tank. The control valve and electronics carry the manufacturer's own warranty.
• Bypass valve included, so the system can be isolated for service while water keeps running to the house.
• 10 feet of discharge hose for the drain line.

Specifications

What this system handles

• Orange-brown iron staining
• Rotten-egg sulfur smell
• Rust rings in toilets and tubs
• Staining on laundry

The next step

Order your WSP Whole House Iron & Sulfur Filter — City Water, Hard online today and start improving your water’s look, smell, and feel with no extra shipping costs.