Frequently Asked Questions About Water Testing & Treatment

Water Doctor offers many highly effective services that will treat your water and keep it running as clean as possible. The following are some of the most common questions our clients in Maryland have about hard water, acidic water, stains, and more!

We are always happy to answer your questions and provide the reliable service you need to enjoy fresh, clean water. Call 301-953-2846 or contact us online today!

What are cation exchange water softeners?

Standard water softeners are cation exchange devices. Cation exchange, or base exchange, is the process of changing a sodium or hydrogen molecule for a calcium or magnesium molecule. This balances the charge within the water and thus softens it.

Is acidic water bad for you?

Acidic water with a pH below 6.5 is corrosive and can leach metal from your copper, lead, and zinc pipes and fixtures. As it does this, it will give your water a metallic taste, stain laundry, and cause stains on sinks and toilets.

What water treatments does my home's water supply need?

Our certified water quality professionals can come to your home and inspect your water. We can test the pH level, check for iron, take samples for bacteria, and more.

What is causing the orange stains in my toilet and bathtub?

Orange stains on your toilet and bathtubs around the waterline are caused by mineral deposits or hard water. This discoloration can be removed using a stiff-bristled brush and a baking soda/vinegar paste.

What is hard water?

Hard water is water with considerably high mineral content. It is formed as water slowly percolates through limestone and chalk deposits beneath the soil.

These deposits are largely comprised of calcium magnesium carbonates, which form the white residue you see on bathtubs, sinks, and fixtures.

I have a water softener. Do I need a water filtration system, too?

Water softeners improve the water we bathe in and use for cleaning our home. However, they do not filter drinking water like reverse osmosis systems and ultraviolet light sterilizers, and they will not remove a wide range of potential contaminants flowing through your taps.

Even if you have a water softener, you may consider adding a water filtration system to ensure the water is safe to drink. The Water Doctor team can ensure you have soft water for cleaning and bathing and filtered water for drinking and cooking.

How do I remove sulfur from water?

A rotten egg smell in your well water is a clear sign that your water has excessive amounts of hydrogen sulfide, which comes from decaying organic matter.

There are other causes of sulfur odor. Contact our staff for a helpful tip sheet.

A water treatment professional can remove this odor through a number of methods such as activated carbon filters, ion exchange, oxidizing filtration, and more.

Is sulfur dangerous?

Small amounts of sulfur won’t pose problems, but too high levels could cause diarrhea and dehydration, so it is best to remove it.

What is a chemical injection feeder?

These feed small doses of chemicals into your water as it flows from your water well and through your system. These systems may be used to treat acidic water or to address odors in the water.

Water Doctor prefers natural mineral acid neutralizers, but we do use chemical injection feeders for commercial applications.

How does reverse osmosis work?

Reverse osmosis systems use a high-pressure pump to force water over a semipermeable membrane. As the water flows through the membrane, it filters between 75% to 95% chlorine, dissolved solids, and other chemicals and solids.

Contact Us for More Information

The Water Doctor team is happy to help you enjoy the clean, fresh water you desire! We can install a wide range of systems and treatment options in your home or business, so whether you have hard water, odorous water, or other problem, our water treatment experts are happy to use our skills, knowledge, and expertise to help improve your water quality.

Contact Water Doctor online today or call us at 301-953-2846!


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Anne Arundel | Howard | Baltimore | Frederick | Montgomery | Carroll | Charles | Calvert | Queen Anne's | Harford