⚠ Disclaimer
The content in this post represents the professional opinion of a working RV technician based on hands-on experience. It is not a substitute for your own research, your RV's owner manual, or the advice of a licensed professional. Every RV is different. When in doubt, consult a qualified technician.
The Problem
Why Your RV Faucet Trickles Instead of Flows
RV water lines pick up small sediment and particulates — especially if you've been filling from different campground sources. Also, minerals in the water can build up over time. It has to go somewhere.
That somewhere is your aerator. It's a small screen screwed onto the end of your faucet spout. It's designed to mix air into the water stream for a smoother flow — but it doubles as an accidental filter. Over time, it collects enough grit to choke your flow down to a frustrating trickle.
The good news: cleaning it is one of the easiest maintenance tasks you'll ever do on an RV.
ℹ️ What Is an Aerator?
A small mesh screen assembly threaded onto the tip of your faucet spout. Most RV faucets have them. They're cheap, standard, and easy to miss — until your water pressure suddenly seems terrible.
Part One · 5 Minutes
How to Clean Your RV Faucet Aerator
You do not need any special tools for this. Just your hands.
💡 Pro Tip — Do This First
Before you unscrew anything, lay a towel over the drain opening. Aerators are made up of tiny parts — a screen, a housing, sometimes a small rubber washer. Drop one and it's gone. The towel takes two seconds and saves a lot of frustration.
Cleaning the Aerator — Step by Step
1
Lay the towel down. Cover the drain opening completely. Small parts will bounce and roll — the towel stops them. This is the step you can leave off, but will inevitably regret it later - ask me how I know.
2
Turn off your water supply. Just turn off the faucet. Nothing fancy.
3
Unscrew the aerator by hand. Look at the tip of the faucet spout. You should see a small threaded cap — that's it. Turn counter-clockwise. Most come off with hand pressure alone.
4
Note the order of parts as you remove them. Some aerators are one piece. Others have a housing, a screen, and a rubber washer. Keep them in order so reassembly is easy.
5
Rinse the screen under running water. Hold the screen up to light — you'll see where it's clogged. Rinse until clear. For stubborn buildup, a toothbrush works fine. For really stubborn, a quick soak in a little white vinegar can help
!
Do not cross-thread it. If it feels like it's binding or fighting you, stop. Back it off and start again straight. A cross-threaded aerator can damge the faucet. Just be very gentle it will all be OK.
6
Reassemble and screw it back on by hand. Thread it on carefully, starting slowly. Make sure it's straight before you tighten. Hand-tight is enough - just until snug.
7
Turn your water back on and test. Flow should be noticeably stronger. If it's still weak, move on to Part Two below.
Part Two · Bonus Step
Finding a Hidden Flow Restrictor
If you cleaned the aerator and the flow is still disappointing, there may be a second culprit: a flow restrictor.
Many faucet manufacturers install flow restrictors inside faucets before they leave the factory. The goal is water conservation — the result is someimes uninspiring water preasure. You will use more water, so if you are boondocking this may be a consideration.
Flow restrictors are usually a small plastic disc or insert, often inside the aerator housing itself — or just behind it, inside the faucet tip. They're easy to miss if you don't know to look for them.
ℹ️ What Does a Flow Restrictor Look Like?
Usually a small flat plastic disc or cone with a tiny hole in the center. It may be wedged inside the aerator housing or seated just inside the faucet spout. It's often the same color as the housing, so look carefully.
Checking for a Flow Restrictor
1
Remove the aerator as described in Part One. Towel over the drain — same drill.
2
Look inside the aerator housing and the faucet tip. Use your phone's flashlight if needed. Look for a small disc or insert with a single small hole. That's a restrictor.
3
Remove it carefully. A toothpick or small flathead screwdriver can help pop it out. Go slow — don't gouge the housing.
4
Keep it. Don't throw it away. If you ever move to a situation where tank conservation matters, you'll want to put it back.
5
Reassemble and test. Thread the aerator back on — straight, slow, no forcing. Turn the water on and see how it feels. The same warning about cross threading apply.
⚠️ Before You Remove It — Consider Your Setup
If you're primarily a boondocker or off-grid camper running on a freshwater tank, that restrictor is helping you. Removing it will increase consumption. Think about how you use your RV before you pull it out.
ℹ️ Not Comfortable? That's Okay.
This is a simple task for most people — but if you're not confident working with faucet components, or if your faucet looks different from what's described here, there's no shame in having a qualified technician take a look. A good tech can do this in minutes and make sure nothing gets damaged in the process.
