Does an RO system send water down the drain?

Yes, some of it. Every RO unit flushes a share of incoming water out the drain line to carry off what the membrane holds back. The amount varies with the system and your water pressure. Adding a permeate pump or choosing a more efficient membrane reduces it a good deal, and we can fit either one if you care about that.

Is there room for RO if my sink has a disposal?

In most kitchens, yes. The filters go on a side wall of the cabinet and the tank goes where the disposal still has clearance. If the space is especially cramped, we let you know ahead of install day and propose a more compact setup.

When do the filters get replaced?

Expect to swap the prefilters and polishing filter roughly once a year, with the membrane lasting longer, all depending on your water. Hard water means more frequent changes, which is part of why the test comes first. Before we leave, we walk you through how to change them.

With the minerals gone, some people find the taste lighter and cleaner. If you want more body, an optional cartridge after the membrane adds back trace calcium and magnesium before the water reaches your glass.

Is the system covered by a warranty?

System tanks on qualifying systems come with a lifetime warranty. When we quote your installed price, we confirm whether the system you picked is one of them.

Should I add a water softener as well?

It depends. When your test reads high for hardness, putting a softener before the RO shields the membrane and the rest of the plumbing in your home. The water softeners page covers that choice, and we recommend it only when your readings call for it.

ServicesReverse Osmosis

Reverse Osmosis Systems in Tolleson

We install reverse osmosis beneath your kitchen sink, giving you a separate faucet for drinking and cooking water that has passed through a fine membrane. The cabinet is lined before any tools come out, drill dust is vacuumed as we work, and your things go back where they were.

Get installed RO pricing at (480) 906-3934

Technician kneeling at an open kitchen sink cabinet, connecting tubing on a white multi-stage reverse osmosis filter beside its storage tank

Filtered Water at One Tap, Where It Matters Most

Reverse osmosis uses your home's water pressure to push water through a membrane with pores far smaller than a carbon filter's. Dissolved minerals, salts and many trace contaminants are held back and rinsed to the drain. What comes through is stored in a small tank and delivered through a dedicated faucet at the sink.

Choose RO when what bothers you is the water you drink and cook with, not the water in the shower. For treated water at every fixture, our whole-home filtration page covers that work, and many homes pair the two.

Across the West Valley, mineral-heavy water is common, and minerals shorten a membrane's life. That is why we start with a free water test with zero obligation, so the system we price matches what is actually in your water.

What Your RO Install Includes

Staged filtration

A sediment prefilter traps grit first. Next, a carbon block takes out chlorine, which would otherwise wear down the membrane. After the tank, a polishing filter handles the final taste.

Storage tank

A pressurized tank holds a ready supply so the faucet flows steadily. We check its air charge before filling it. Qualifying systems carry a lifetime warranty on the system tank.

Dedicated faucet

Many sinks already have a spare opening where a sprayer or soap pump once sat, and we use it when we can. If not, we bore a neat new opening through the countertop and pick a faucet finish that suits your main fixture.

Drain and supply connections

Reject water is routed to the drain through a proper drain saddle, and the feed comes from a new shutoff valve. Tubing is cut square and fully seated so every connection stays dry.

Optional refrigerator line

If your fridge has a dispenser or ice maker, we can run tubing so it draws RO water too, routed neatly along the cabinet back.

Cabinet care and cleanup

We clear the cabinet onto a towel, lay a liner, vacuum every bit of shavings and wipe the base dry. Install is included with water treatment systems, so the price covers this work.

Technician crouching at an open kitchen sink cabinet holding a water sample vial and test strip beside an under-sink reverse osmosis system and tool bag

Signs Reverse Osmosis Fits Your Kitchen

You buy bottled water every week: Cases and refill jugs add up and take space. An RO faucet gives you the same kind of water from the sink.
Coffee and tea taste off: A chlorine or mineral edge comes through in hot drinks first. RO with carbon polishing removes most of it.
White crust on kettles and ice: Cloudy ice cubes and scale in the kettle point to high dissolved minerals that RO is built to reduce.
A test shows high dissolved solids: If your water test reads high on total dissolved solids, a membrane is one of the few treatments that brings that number down meaningfully.
Your current RO has slowed: A faucet that trickles, a tank that empties fast or a returning taste usually means tired filters, a fouled membrane or a tank that has lost its charge.

Your RO Install, Step by Step

1
Water test first
Before pricing anything, we check your water at no charge and walk you through the readings. Hardness matters most here, because hard water shortens membrane life and may point to a softener first.
2
Installed price by phone
You get the full installed price by phone, with the stages, faucet and any fridge line spelled out, before anything is scheduled.
3
Install day
Installs are done by licensed and insured partner plumbers. Yours empties and lines the cabinet, mounts the unit on the side wall to keep your storage usable, and makes the supply and drain connections.
4
Flush and check
The first tank or two is flushed to clear carbon fines. We check every fitting for drips and confirm tank pressure and faucet flow.
5
Clean finish
Shavings are vacuumed, the cabinet floor is wiped dry, your things go back in, and we show you how and when to change each filter.

What Moves the Price of Reverse Osmosis

The differences between one RO install and another come mostly from the system itself and your kitchen layout. Since install is included with water treatment systems, the installed price you get by phone covers the work as well as the equipment.

Stages and add-ons: A remineralization stage, a permeate pump that cuts wasted water, or a booster pump for low pressure each add to the system.
Countertop material: Drilling a faucet hole in quartz or granite takes more time and a diamond bit compared with using an existing sprayer hole.
Refrigerator connection: Running a line to a fridge across the kitchen adds tubing, fittings and routing work.
Under-sink condition: A seized shutoff valve, crowded disposal plumbing or a tight cabinet can mean extra parts or a different mounting plan.

Common Questions About Reverse Osmosis

Does an RO system send water down the drain?: Yes, some of it. Every RO unit flushes a share of incoming water out the drain line to carry off what the membrane holds back. The amount varies with the system and your water pressure. Adding a permeate pump or choosing a more efficient membrane reduces it a good deal, and we can fit either one if you care about that.
Is there room for RO if my sink has a disposal?: In most kitchens, yes. The filters go on a side wall of the cabinet and the tank goes where the disposal still has clearance. If the space is especially cramped, we let you know ahead of install day and propose a more compact setup.
When do the filters get replaced?: Expect to swap the prefilters and polishing filter roughly once a year, with the membrane lasting longer, all depending on your water. Hard water means more frequent changes, which is part of why the test comes first. Before we leave, we walk you through how to change them.
Is RO water bland?: With the minerals gone, some people find the taste lighter and cleaner. If you want more body, an optional cartridge after the membrane adds back trace calcium and magnesium before the water reaches your glass.
Is the system covered by a warranty?: System tanks on qualifying systems come with a lifetime warranty. When we quote your installed price, we confirm whether the system you picked is one of them.
Should I add a water softener as well?: It depends. When your test reads high for hardness, putting a softener before the RO shields the membrane and the rest of the plumbing in your home. The water softeners page covers that choice, and we recommend it only when your readings call for it.

Two tall black filtration tanks with a control head and a black brine tank against a painted garage wall, beside a water heater and garage door track

Start With a Free Water Test

We will test your water, explain what an RO system would change, and give you the installed price with no obligation. Our customers have left 3 five-star Google reviews, and we would like your kitchen to look as tidy as theirs did when we left.

Set up your free water test at (480) 906-3934