Water Quality

Harmonic Resonance: Causes Vibrating & Loud Noise - RO-PERM

The loud noise & vibrating could be due to the "harmonic resonance" between the RO system & your house. This happens sometimes when the system's frequency resonates with your house's the n...

If RO Makes Noise: - RO-PERM

Need Release Air Trapped in Check Valve If your RO system makes a whining or humming noise, most likely it's due to air that got trapped in the "Check Valve" during installation. So we need...

RO-Perm Flow Rate Test

To determine why your RO's output flow and shut-off function are slower than normal, we need to test the input water pressure, and the water's output speed at different points on the RO syst...

Cloudy "Milky" Water - RO-PERM

Problem: Cloudy and aerated "milk" water from RO spigot clears up in a while. Causes: Air in water source, accumulates on top of tank, and dispenses out of RO spigot. Most likely the cloudiness is...

RO-PERM - Color/Taste/Smell

  Problem Causes Solution 1 Milky Colored Water Air in the system Air in the system is a normal occurrence with intial starting up the RO system. This milky color look will disap...

RO-Perm Troubleshooting

Below are the common problems you might encounter as an APEC RO-Perm Owner. Please identify the problems on your RO-Perm with the help of the diagram. Click on the problems for solution...

RO-CTOP Model - Slow, Little and No RO water output

The causes to the output problem are listed in the timeframe that you've owned your RO system. The grey background applies to systems in use for under 3 months and the white background ...

RO-CTOP model - Leaks

We suggest that when you first install your RO system. You place a paper towel underneath the RO system to determine if any minor leaks e...

RO-CTOP High TDS

The causes to the High TDS are listed in the timeframe that you've owned your RO system. The grey background applies to systems in use for under 3 months and the white background applies to s...

TDS Test

How to Use the TDS Meter The TDS* meter is used to test your water's quality before and after the RO system. It also tells you when the membrane needs to be c...

Troubleshoot Guide: Bad Taste or Bad Smell - RO-CTOP Model

To determine what's causing the "funny" taste, please do the following for us: Check the TDS (contaminant) level at different points along the system. ...

Cloudy "Milky" Water - RO-CTOP

Problem: Cloudy and aerated "milk" water from RO spigot clears up in a while. Causes: Air in water source, accumulates on top of tank, and dispenses out ...

RO-CTOP Color/Taste/Smell

  Problem Causes Solution 1 Milky Colored Water Air in the system Air in the system is a normal occurrence with intial starting up the RO system. This milky color look will disap...

RO-CTOP Troublshooting

Below are the common problems you might encounter as an APEC RO-CTOP Owner. Please identify the problems on your RO-Perm with the help of the diagram. Click on the problems for solution...

RO-45 model & RO-90 model Waste Water: Slow to No Shutoff

The causes to the Slow to No Shutoff are listed in the timeframe that you've owned your RO system. The grey background applies to systems in use for under 3 months and the white background ap...