WSP Whole House Arsenic Reduction System

If your well water contains arsenic, an invisible contaminant that standard filters miss, this whole-house system helps reduce it to below EPA limits. It treats all the water entering your home without electricity or salt, making drinking, cooking, and washing safer and cleaner.

The problem

Arsenic in well water is a hidden issue. You won’t see or smell it, but if your water comes from a private well, there’s a chance it contains arsenic. It doesn’t affect taste or odor, so you might notice nothing wrong—until you find out later that it’s been there all along. This contaminant can leave a stubborn stain on fixtures and make you worry about your family’s water quality, even if you can’t detect it yourself.

Why it’s happening

Arsenic naturally occurs in certain groundwaters, especially in well water drawn from particular rock layers. Regular water softeners and carbon filters don’t catch it because arsenic particles are tiny and chemically tricky. The only way to confirm it’s in your water is to have your well water tested by a certified lab for arsenic levels, looking specifically for both arsenic III and arsenic V forms.

What it’s costing you to leave it

Without treatment, arsenic stays in every drop of water you use—from showers and laundry to drinking and cooking. Over time, it can cause staining and buildup inside pipes and appliances, reducing their lifespan and efficiency. You may spend more on cleaning to remove deposits that don’t wash away easily. Although it doesn’t affect the taste or smell, arsenic presence means your water quality isn’t where you want it.

How this system fixes it

This system works by passing your water through a special filter media that acts like a magnet for arsenic. It’s based on adsorption, which means the arsenic sticks to the filter material and stays trapped there. Because this system uses iron-based media designed specifically for arsenic, it can reduce both common forms to levels below EPA’s recommended limit, without electricity, salt, or backwashing.

What this system can handle

This whole-house unit treats all the water entering your home, so every tap gets filtered. It starts with a sediment and carbon pre-filter to catch dirt, rust, and chlorine—protecting the arsenic media and improving water clarity and taste. The main filter contains iron-oxide media that selectively adsorbs both arsenic III and arsenic V forms. It can handle typical household flow rates and water conditions found in well water, and the system’s backwashing valve automatically cleans the media bed on a schedule to keep it effective for years. This setup works well for typical family homes with private wells that test positive for arsenic at or above EPA limits.

What you actually get

Inside the package, you receive the pressure vessel that holds the filter media and comes with a lifetime warranty for peace of mind. The system includes a bypass valve at no extra charge, letting you isolate the filter during maintenance without shutting off water to your whole house. Also supplied is 10 feet of discharge hose for the backwash drain line. The control valve and electronics are covered by their manufacturer’s warranty, as detailed in the product information.

Is this the right size for you

This system is designed for full household use where arsenic is a confirmed problem. If your home has a very large water demand or unusually high arsenic levels, you might need a more robust system or multiple units. Conversely, if your arsenic levels are very low or you only want to treat drinking water at a single tap, a point-of-use filter might be more appropriate. Proper sizing is important to ensure effective treatment without unnecessary expense.

Living with it

Operating this system is straightforward but not hands-off. The filter media needs periodic backwashing to stay fresh, which the control valve handles automatically on a set schedule. You’ll also need to replace the filter cartridges when they no longer adsorb arsenic effectively, typically after a set volume or time period depending on your water use and arsenic levels. The bypass valve makes servicing easier without interrupting your water supply.

What it won’t do

This system does not remove other contaminants like bacteria, viruses, or chemical pollutants unrelated to arsenic. It also doesn’t soften hard water minerals or remove iron and manganese unless they are part of the sediment filtered out in the first stage. If your well water has these issues or others, you will need additional or different treatment equipment tailored to those problems.

Why buy it from us

Water Softener Plus supplies systems built to last with serviceable parts and a pressure tank covered by a lifetime warranty. We include the bypass valve and discharge hose at no extra cost—features competitors often charge separately for. Your purchase ships free anywhere in the U.S. from our Tampa warehouse, and we back our product with a 90-day money-back guarantee. Our team is ready to help you size the system correctly, drawing on years of experience with water problems like yours.

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

• Arsenic reduction
• Whole-house treatment
• Sized to your water test

The next step

Order your WSP Whole House Arsenic Reduction System today to start reducing arsenic from every tap in your home. Free U.S. shipping is included, and we’ll support you with sizing advice before you buy.