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Reverse Osmosis Systems in Gaithersburg, MD
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Reverse Osmosis Systems in Gaithersburg, MD

For what you drink and cook with, rather than the whole house.

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Reverse Osmosis for Drinking Water

Reverse osmosis systems treat drinking water specifically, which is why they go under the kitchen sink rather than at the main. If your concern is what comes out of the tap you drink from rather than what your appliances see, this is the equipment for it. Call [(301) 834-2944](tel:+13018342944).

RO pushes water through a membrane that removes dissolved solids, then stores the result in a small tank so you're not waiting at the tap. It's slower than a filter by design, which is exactly why it's point-of-use instead of [whole-house](/services/whole-house-water-filtration).

Completed reverse osmosis in a Maryland home

What It Removes and What It Costs You

An RO membrane removes dissolved solids that a carbon filter passes straight through. That's the reason people install one, and it's a genuine difference rather than a marketing distinction.

The trade-offs are real too. RO produces some wastewater alongside the treated water, and it's slow, which is why there's a holding tank under the cabinet. It also takes up space you might currently be using.

It removes minerals along with everything else, so some people find the water tastes flat. Remineralising stages exist for exactly that preference. Worth deciding before installation rather than after.

Reverse osmosis detail in a Maryland home

Where RO Fits

Details below

Drinking and cooking

The kitchen cold tap, and often a line to the refrigerator or ice maker.

After a softener, not instead

A softener protects appliances; RO handles what you drink. They do different jobs.

Well water

Frequently the right choice for drinking water even when whole-house treatment is already in place.

Rented or small homes

Point-of-use means no work at the main, which matters if a whole-house install isn't practical.
Reverse osmosis detail in a Maryland home

Filters and Membranes Aren't the Same Schedule

The pre-filters ahead of the membrane load up first and need changing well before the membrane does. The membrane itself lasts years when it's protected, and fails early when the pre-filters are neglected, because it takes the load they should have.

That's the whole maintenance story, and it's the reason a neglected RO system underperforms rather than simply stopping.

We install these and service systems other companies put in, including replacing filters on a schedule so it isn't on your list. Call (301) 834-2944.

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Want Better Drinking Water?

Tell us whether you're on county water or a well, and what you're tasting. Call [(301) 834-2944](tel:+13018342944), or use the [contact form](/contact-us).

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Reverse osmosis detail in a Maryland home
FAQ Common questions

Frequently Asked Questions

Answers below
Do I need reverse osmosis if I already have a softener? +
They do different jobs. A softener protects your plumbing and appliances from hardness; it isn't a drinking-water treatment. If your concern is what you drink, RO at the kitchen is the piece that addresses it, and the two work together fine.
Does RO waste water? +
It produces some wastewater alongside the treated water, which is inherent to how the membrane works. Modern systems are better at the ratio than older ones, and it's worth knowing about rather than being surprised by.
Will RO water taste different? +
Yes, and reactions vary. Removing dissolved minerals makes some people find it flat. Remineralising stages address that, so if you're particular about taste, say so before installation rather than after.

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