Light Commercial Reverse Osmosis | Up to 1000 GPD, Irvine
Family owned in Irvine since 1972  ·  222 Goddard, Irvine, CA 92618  ·  Mon to Fri 9 to 5 Licensed and insured  ·  CSLB C-55 #1022717

Light Commercial · Built To Order By McCowin Water

LC Reverse Osmosis

Here's the honest pitch. If your business runs on water, and the tap water is quietly costing you in scale, in taste, or in machines that die early, this is the fix. It's a simple, compact reverse osmosis system that makes up to 1000 gallons of purified water a day, and we build each one to your shop's exact demand. Floor, wall, or right on the tank.

Up to 1000 gallons a day Custom built to order Floor, wall or tank mount Atlas Filtri housings Under 60 pounds
McCowin LC Reverse Osmosis light commercial water filtration system with blue filter cartridges and a digital display, shown beside a compatible storage tank

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Why this one exists

Stop buying your water by the jug. Start making it by the gallon.

Plenty of Orange County businesses handle their water the expensive way, a standing order of bottles and jugs stacked in the back, delivered on someone else's schedule, priced by someone else's math. It works, right up until the delivery is late on your busiest morning or the invoice creeps up again.

The LC Reverse Osmosis system ends that treadmill. It's a light commercial unit that sits in your back room and makes purified water on demand, up to 1000 gallons a day, straight from the line you already pay for. No jugs to lift, no truck to wait on, no per gallon markup. Just clean water, on tap, whenever the shop needs it.

And here's the part that matters for a business. This isn't an off the shelf box we hope fits. We build each one to order. Your daily volume, your water pressure, your space, your equipment, they all decide how we configure it. It's less like buying an appliance and more like ordering a machine spec'd for your operation, then having the same local shop install it and keep it running.

How it actually works

Reverse osmosis, explained without the lab coat

Once you picture it, the whole thing makes sense, and almost nobody bothers to explain it. So here it is in plain English, one stage at a time.

Stage one, the pre filters. Before your water ever meets the important part, it runs through high capacity 20 inch pre filters. These catch sediment and strip out chlorine, and they're really bodyguards for the membrane behind them. Chlorine chews up a membrane over time, so we take it out first. This is the oil filter of the system, cheap to change, and it protects the expensive part.

Stage two, the membrane. This is the magic. Reverse osmosis pushes your water, under pressure, against a semipermeable membrane, a barrier so fine that basically only water molecules fit through. The clean water squeezes to one side. The dissolved solids it was carrying, the minerals, the salts, most of what a total dissolved solids meter reads, cannot follow, so they get rinsed away down the drain. A coffee filter catches grounds. This catches things far too small to see. That's the leap from filtering to truly purifying.

Two streams come out. The clean water is called permeate, and that's what you use. The leftover stream that carried the junk away is the concentrate, and it goes to the drain. Every reverse osmosis system on earth works this way. The better the design and the better the pressure, the more permeate you get and the less you send down the drain, which is exactly why a booster or permeate pump is a popular option here.

Stage three, storage and polish. Purified water usually fills a storage tank, a 30, 40 or 80 gallon FlexWave, so a full reservoir is ready when demand spikes. On the way to the tap it can pass through post filtration for a final polish, and if you add the ultraviolet option, past a UV lamp that neutralizes any living micro organisms as a last safeguard. One pass, and what comes out is clean, consistent, and yours to make all day.

Where it pays for itself

What changes in the business once the water's pure

Bad water never sends you an invoice. It just shows up in the product and quietly kills the equipment while you wonder why. Here's where a light commercial RO system earns its keep.

Coffee, tea and espresso

Great coffee is almost all water, and minerals in the water fight the flavor and cake scale onto the boiler and group heads. Purified water tastes cleaner in the cup and stops scale from turning a pricey espresso machine into a paperweight. The blending valve even lets us dial in the exact mineral level a barista wants.

Ice, and clear ice

Ice made from hard, cloudy tap water looks it, and it carries the taste with it. Ice from RO water comes out clearer and cleaner tasting, and the ice machine itself runs longer between descalings because there's far less mineral to crust up its guts.

Restaurants and kitchens

Cleaner water means better tasting food, spotless glassware out of the dish machine, and steam ovens, combi ovens and dishwashers that don't scale shut. Scale is the silent tax on every heated water appliance in a commercial kitchen.

Salons and spot free rinsing

Hard water leaves spots and film as it dries, on glass, on cars, on a client's hair. RO water dries clean, which is why salons, detailers and window crews use it for that final spot free rinse that needs no towel.

Labs, dental and medical

Instruments, sterilizers and procedures that call for low mineral water get a steady, monitored supply, with the ultraviolet option adding a layer of biological protection. Consistent purity you can actually watch on a gauge.

Aquariums, plants and process

Pet and aquarium stores, growers, humidification, misting, and small water stores all need reliable low mineral water in volume. Making it on site beats hauling it, and you control the quality instead of hoping a supplier did.

What comes standard

The four things every LC system is built on

Straight from our build sheet, with a plain note on why each one actually matters once the system is bolted into your back room.

High capacity 20 inch pre filters

The bodyguards. Full size 20 inch filters catch sediment and pull the chlorine that would otherwise eat the membrane alive. Bigger filters mean more capacity and longer stretches between changes, so the protection stays cheap and the membrane lasts.

Atlas Filtri housings

The housings hold everything under pressure day after day, so the quality of the housing is the quality of the system's spine. Atlas Filtri is a serious Italian maker, not a bargain bin part, which is a big reason these units just keep running.

500 GPD membrane, or two

The heart of it. A membrane rated at 500 gallons per day does the actual purifying. Run one for a 500 gallon build, or two for the full 1000. This is what turns ordinary tap water into clean water on demand.

Powder coated steel frame

The skeleton. A powder coated steel frame keeps the whole assembly rigid, rust resistant, and ready for a wet back room, while staying light enough, under 60 pounds, to mount on a wall or a tank instead of hogging floor space.

The custom built part, explained

The options, and what each one is really for

This is where "custom built" stops being a brochure word and turns into your machine. We add these based on your water test, your pressure, and how you'll use the water. Pick the two or three that fit, skip the rest.

Dual TDS monitor and blending valve

Shows the total dissolved solids going in and coming out at a glance, and lets us blend in a measured trickle of mineral water to hit the exact purity your equipment wants.

Aquatec booster or permeate pump

A booster pump gives weak building pressure the shove the membrane needs for full output. A permeate pump makes the system run more efficiently and waste less water.

500 or 1000 GPD build

Size it to the shop. One 500 gallon per day membrane for lighter demand, two for the full 1000. We match capacity to your real daily use, measured, not guessed.

Luminor UV upgrade

A final ultraviolet safeguard that neutralizes living micro organisms on the way out. No chemicals, no taste, popular for kitchens, labs, medical and dental, and any tank stored water.

Custom labeling and branding

Put your name on the front. Ideal if you resell the water, run a water store, or keep the equipment somewhere customers can see it.

Pressure gauges

Simple dials that let you and our technician read the system's health in seconds, so a small change gets caught before it becomes a service call.

Integrated 20 inch post filtration

A final polishing stage built right in, so the water gets one last pass for taste and clarity before it reaches your tap or tank.

Tank mounting kit

Bolts the whole system onto a 30, 40 or 80 gallon FlexWave steel storage tank, so the unit and its reservoir share one compact footprint.

You won't add all of these. That'd be like ordering every option on a truck you only drive to work. You add the handful your operation actually needs, which is exactly why the water test and a look at your space come first.

The published numbers

The build sheet, so you can hold it up against anything else

Most water company sites won't show you this. Here it is as we build it, so you're comparing apples to apples with whatever else you're pricing.

McCowin LC Reverse Osmosis, from the McCowin Water product brochure. Configuration dependent figures are confirmed for each site at the water test.
System typeLight commercial reverse osmosis, custom built to order
Daily productionUp to 1000 gallons per day (GPD)
Membrane500 GPD membrane or membranes, 500 or 1000 GPD builds
Pre filtrationHigh capacity 20 inch pre filters in Atlas Filtri housings
FramePowder coated steel
MountingFloor, wall, or tank mounting
Tank mounting kitFits 30, 40 and 80 gallon FlexWave steel tanks
Monitoring and controlDigiFlow i790M monitor, optional dual TDS monitor and pressure gauges
Pumps, optionalAquatec booster pump or permeate pump
Disinfection, optionalLuminor ultraviolet upgrade
Post filtration, optionalIntegrated 20 inch post filtration
Branding, optionalCustom labeling and branding
DimensionsApprox. 31″ H x 13″ D x 19″ W
WeightUnder 60 pounds

The two numbers we always confirm in person are pressure and daily volume. Pressure is like the water pressure behind a garden hose, if it's weak, the membrane can't do its best work, and that's when a booster pump earns its place. Daily volume is simply how many gallons your operation burns on its busiest day. We measure both at your site before we finalize the build, because a system that's undersized runs ragged and one that's oversized wastes money. Right sized is the whole game.

Local context

Built for the water Orange County businesses actually get

We work one county on purpose, so we can be specific about this instead of hand wavy.

The tap water here is hard and chlorinated. Orange County city water tends to run hard, often around 12 to 23 grains per gallon, and it carries chlorine for the trip through the pipes. For a home that means scale and dry skin. For a business it means scale on every heated appliance and chlorine taste in everything you make. Reverse osmosis takes both down to a fraction, which is why food service, salons and clinics here reach for it.

Older buildings often have soft pressure. A lot of Orange County strip centers, upstairs suites and 1970s commercial spaces don't push much pressure at the tap, and reverse osmosis lives or dies on pressure. That's not a dealbreaker, it just means we measure first and add an Aquatec booster pump when the reading calls for it, so your production never sags.

Back room space is always tight. Commercial kitchens and salons fight for every square foot. The LC unit is compact, about 31 inches tall and under 60 pounds, and it can hang on a wall or ride on top of its own storage tank, so it asks for a footprint most shops can actually spare. We look at the real spot before we promise anything.

We stay in Orange County for a reason. One county means our crew already knows how the water behaves from Irvine to the coast, and our trucks are in these towns most weeks, so service is a short drive, not a scheduling saga.

Irvine Tustin Newport Beach Costa Mesa Santa Ana Mission Viejo Lake Forest Laguna Niguel Huntington Beach San Clemente

Our shop is at 222 Goddard in Irvine and our trucks run daily, so most appointments land the same week.

Which build is right

500 or 1000 gallons a day. Here's the honest difference.

People ask us this constantly, so here are the two builds side by side instead of us pushing the bigger one by default.

Two ways we configure the same LC Reverse Osmosis platform.
  LC 500 GPD build LC 1000 GPD build
Best for A cafe, salon, small office or clinic with steady but modest daily use A busy restaurant, multi chair salon, water store or higher volume process
Membranes One 500 GPD membrane Two 500 GPD membranes
Daily output Up to about 500 gallons per day Up to about 1000 gallons per day
Footprint Same compact frame, floor, wall or tank mount Same compact frame, floor, wall or tank mount
Common add ons Booster pump if pressure is low, post filter Booster or permeate pump, dual TDS, larger storage tank
Storage pairing 30 or 40 gallon FlexWave tank 40 or 80 gallon FlexWave tank

Here's the simple version. If your busiest day sips water, the 500 build keeps up and costs less. If your busiest day gulps it, the 1000 build has the headroom so you never run dry mid rush. The frame and the footprint are the same either way, the difference is mostly membranes, pumps and tank size. We'd rather size you right than sell you big, which is the entire reason we measure your real usage first.

The honest part

Who this suits, and who it doesn't

It's probably right for you if your business goes through real volume of water every day and the quality shows up in what you sell or in what you have to repair. Coffee, food, ice, rinsing, labs, clinics, water resale. If you're tired of jug deliveries or watching scale eat your equipment, this is the one.

It's probably more than you need if you just want better drinking water at one sink. In that case a point of use reverse osmosis unit under the counter does the job for far less, and we'll tell you so rather than oversell you. We're not going to put a 1000 gallon a day machine behind a single break room tap.

It's also not the fit if you rent a space where you can't add permanent plumbing or a drain, though we're happy to talk through what a landlord conversation would need to cover.

A short visit settles all of it. We test your water, read your pressure and flow, measure the space and the drain, and ask how many gallons your busiest day really burns. We write it down and hand it to you, whether you buy anything or not. Think of it as a checkup for your operation's water.

A written water test reading taken at a business before an LC reverse osmosis system is configured

Install, service and what backs it

Bought, built and backed by one local shop

The real advantage of a light commercial system is not the box. It's who stands behind it after the install. Here's how that works with us.

Built and installed by McCowin

We custom build the system, install it to code, and set it up for your water and your pressure. Component makers like Atlas Filtri, Aquatec, DigiFlow and Luminor back their own parts, and we handle any of those claims for you rather than sending you off to chase a manufacturer.

Kept running on a service plan

Filters on a schedule, membrane replaced only when the TDS readings call for it, UV lamp swapped about once a year if you have it. We put the whole thing on a simple plan so remembering it is our job, not yours, and your water never quietly drifts.

The McCowin Guarantee on your install

If the LC system we build and install doesn't do what we said it would:

  1. We come out and fix it. No charge.
  2. If we can't fix it, we make it right, up to replacing the system with one that does the job.

Our install workmanship guarantee runs one year from your installation date, and our service support doesn't expire. Full written terms are provided with your quote, and where this page and a signed agreement ever differ, the signed agreement controls.

From Orange County customers

People who had us put a system in, and keep it running

A few notes from homeowners and businesses across the county. The part about service after the sale is what a system like this really rides on.

★★★★★
“Good company. Answered every question I had.”

Henry Novell, after a Hague water softener and reverse osmosis installation.

★★★★★
“They carry many different manufacturers and can recommend the one best suited for your needs.”

Anita, Laguna Niguel. She wanted a system that was efficient and produced the least waste water, and wrote that is exactly what she got.

★★★★★
“Meticulous, and complete in every detail. They do not cut any corners.”

Mike Michino, on a service visit. He wrote the technician had him reprogram the unit himself so he could do it after they left.

★★★★★
“We have been with McCowin Water for 7 years and only encountered positive results.”

Ethan Blair. Seven years of quoting, scheduling, service and follow up.

Questions

What businesses ask about the LC system

What does light commercial reverse osmosis actually mean?

Light commercial is the middle child of water systems. It's bigger than the little unit under your kitchen sink and smaller than the room sized plant a bottling company runs. It's built for a business that needs a real, steady supply of purified water every day, a cafe, a restaurant, a salon, a lab, a dental office, without turning into an industrial project. Our LC system makes up to 1000 gallons a day and gets custom built to the exact demand of your shop, so you're not paying for capacity you'll never touch or running dry at the lunch rush.

How does reverse osmosis clean the water?

Picture a screen door so fine that only water molecules fit through it. That's the reverse osmosis membrane. We push your tap water against it under pressure, the clean water squeezes through to one side, and the dissolved junk it was carrying, minerals, salts, most of what a total dissolved solids meter reads, gets left behind and rinsed down the drain. A coffee filter catches grounds. This catches things far smaller than you can see. That's the whole difference between filtering and truly purifying.

How much water does the LC system make in a day?

Up to 1000 gallons a day, depending on how we build it. The standard membrane is rated at 500 gallons per day, and we can run one for a 500 gallon build or two for the full 1000. Real output shifts a little with your water temperature and incoming pressure, cold water moves through a membrane slower, the same way honey pours slower than water when it's cold, which is one reason a booster pump is a popular option. At the water test we size it to your actual daily use so it keeps up without loafing.

Can you mount it on the wall or right on the tank?

Yes, and that flexibility is part of why it exists. The unit is designed for floor, wall, or tank mounting, so it fits the back room you actually have instead of the one a catalog assumes. The frame is powder coated steel and the whole thing weighs under 60 pounds, and our tank mounting kit bolts it straight onto a 30, 40 or 80 gallon FlexWave steel storage tank so the system and its reservoir share one small footprint. When we come out, we look at your space and tell you which mount makes sense.

What is TDS, and why is the dual monitor with a blending valve useful?

TDS stands for total dissolved solids, basically everything dissolved in your water added up, and it's the quickest single number for how pure the water is. The dual TDS monitor shows you two readings at once, the water going in and the water coming out, so you can see the system working at a glance and catch a tired membrane before it becomes a problem. The blending valve is the clever part. Pure RO water can taste flat and is aggressive toward some equipment, so the valve lets us add back a measured trickle of mineral water to hit the exact TDS your espresso machine, ice maker or process actually wants. It's a mixing tap for purity.

Do I need the booster or permeate pump?

It depends on your water pressure, and that's exactly what we measure first. A reverse osmosis membrane needs firm pressure to do its job, and a lot of buildings, especially upstairs suites and older strip centers, just don't push hard enough at the tap. An Aquatec booster pump gives the incoming water the shove it needs so you get full production and better rejection of dissolved solids. A permeate pump is a different helper that makes the system run more efficiently and waste less water. Neither is mandatory. We recommend one only when your pressure reading says it'll earn its keep.

What is the UV upgrade for?

The Luminor ultraviolet option is a final safeguard. Water passes by a UV lamp on its way out, and the light neutralizes living micro organisms so they can't reproduce. Think of it as a lighthouse at the end of the line. The membrane already blocks the vast majority of contaminants, and UV adds a layer of biological protection on top, which is why kitchens, labs, medical and dental offices, and anyone storing water in a tank often want it. It uses no chemicals and adds nothing to the taste.

Can you put our logo and branding on it?

Yes. Custom labeling and branding is one of the options, which matters if you resell the water, run a water store, or just want the equipment in a customer facing space to look like it belongs to you rather than to a factory in another state. We can label the system to your brand as part of the build. It's the same machine underneath, wearing your name on the front.

How big is it and where will it fit?

It's compact on purpose. The frame runs about 31 inches tall, 13 inches deep, and 19 inches wide, and it weighs under 60 pounds, so it tucks into a back room, a closet, or under a counter rather than demanding its own room. Add a storage tank and you'll want a little more space, though the tank mounting kit lets the unit ride on top of the tank to save floor. We never guess at this. When our technician visits, we look at the real spot, the plumbing, and the drain, and tell you honestly what fits.

How much maintenance does it need?

Less than a busy operator fears, but it isn't zero, and anyone who tells you otherwise is selling you a headache. The 20 inch pre filters get changed on a schedule so they protect the membrane, the same way you change the oil to protect the engine. The membrane itself lasts for years and gets replaced only when the TDS readings say it's time, which is exactly what that dual monitor is watching for. If you add UV, the lamp is swapped about once a year. We handle all of it on a simple service plan so it's our job to remember, not yours.

What kind of businesses is this really for?

Any Orange County business where the water quality shows up in the product or the equipment. Coffee shops and restaurants use it for cleaner tasting drinks, clear ice, and to stop scale from killing espresso machines and steam ovens. Salons use it for spot free rinses. Dental and medical offices, labs, aquarium and pet stores, humidification, car detailers doing spot free final rinses, and small water stores all lean on it. If hard or heavily chlorinated tap water is costing you in taste, in scale, or in replaced equipment, this is built to end that.

Do you install and service it, or just sell the box?

We do the whole thing, and that's the point of buying it from a local company instead of a website. McCowin Water has designed, installed and serviced water systems across Orange County since 1972. We test your water, build the system to fit it, install it to code, and keep it running on a service plan afterward. When something needs attention, you call a shop in Irvine whose trucks are already in your area, not a support line in another time zone.

The spec sheet

The LC Reverse Osmosis brochure, in full

Here's the actual product flyer, features, options, dimensions and all. Read it yourself rather than taking our word for any of it, then let's talk about the build your operation needs.

McCowin LC Reverse Osmosis product brochure showing standard features, options, the tank mounting kit, dimensions of 31 by 13 by 19 inches and under 60 pounds, and the DigiFlow, Atlas Filtri, Aquatec and Luminor components

Tap the brochure to read it full size

Find out what your water needs before you buy anything.

A short visit tells us your water quality, your pressure, your space, and how many gallons your busiest day really burns, so we can build the right LC system instead of the biggest one. The test is free, the numbers are yours to keep, and there's nothing to buy.

Or come see one in person at the showroom. 222 Goddard, Irvine, CA 92618. (949) 569-5736. Monday through Friday, 9 to 5.

McCowin Water logo with a water droplet and the slogan Your Source For Great Water

Bad taste. Ugly scale. Endless jug deliveries.
We've been solving water problems for Orange County businesses and homes for 50 years. Cleanly, quickly, and without the sales games.

McCowin Water, Inc.  ·  222 Goddard, Irvine, CA 92618  ·  (949) 569-5736

Monday to Friday 9:00am to 5:00pm  ·  Saturday by appointment  ·  Sunday closed

© 2026 McCowin Water, Inc. · 222 Goddard, Irvine, CA 92618 · CSLB C-55 #1022717 · Licensed, insured, family owned, locally operated