How to Install the APEC ROES-50: A Realistic Guide

The ROES-50 is DIY-friendly, but it helps to know what's involved before you start. Here's an honest breakdown of the installation process, timeline, and where first-timers commonly go wrong.

Time estimate

2–3 hours for first-time installers

If you're comfortable with basic plumbing, the ROES-50 is manageable. APEC's installation guide and video series are among the clearest in the industry. Plan for a full afternoon on your first installation — rushing leads to leaks.

What you'll need

Everything in the box — APEC includes all required hardware
Adjustable wrench and pliers
Drill with a 1.375" hole saw bit (for faucet, if your sink doesn't have a pre-drilled hole)
Teflon tape (usually included with the system)
Bucket and towels for water drips
Optional: TDS meter to verify performance after installation

Installation steps

Turn off the cold water supply under the sink
Install the drain saddle on the sink drain pipe — this is the waste water outlet
Tap into the cold water supply line using the included feed water adapter
Install the dedicated faucet — either through a pre-drilled sink hole or drill a new one
Mount the filter housing assembly in the cabinet using the bracket
Connect all tubing following the color-coded diagram in the manual
Connect the storage tank — ensure the tank valve is open (counterclockwise)
Turn the water supply back on and check every connection for leaks
Flush the system — let it fill and drain at least twice before drinking

Common mistakes to avoid

Forgetting to open the tank valve — the tank won't fill if the valve is closed (clockwise = closed)
Under-inserting tubing — push tubing all the way into John Guest fittings until it stops, then tug to confirm it's locked
Skipping the flush — always flush at least 2 full tank cycles before drinking to clear carbon fines and any manufacturing residue
Overtightening filter housings — hand tight plus 1/4 turn with the wrench is enough; overtightening cracks housings

APEC's installation resources

APEC's official YouTube channel (search "APEC ROES-50 installation") has step-by-step video guides. These are comprehensive and cover the common problem scenarios most installers encounter. Watch the full video before starting — it will save you time and avoid mistakes.

APEC ROES-50 on Amazon →