RV Humidity -- An RV Rig Killer!

A strong title, but true.  One of the major killers of RV walls is moisture in the form of humidity.  You don't even have to be using your RV it can be sitting in storage and humidity can still be present on the inside above a safe level.  Mold depends on moisture to grow and flourish. What is a person to do?  Well, the safe level of humidity for an RV is 40% or thereabouts.  So the first thing you need to do is know your current humidity level and the best way to know that is with a humidity monitor.

Humidity Monitor

In the photo for the Humidity Monitor, the screen is showing 53% which is not acceptable for an RV.  The reading shown is more likely a Sticks&Bricks house.
Now that you know what the humidity is.  What can or should you do if it is not right.  You need to try and find out the source of the moisture causing the high humidity.  People give off moisture when we breathe, but getting rid of all the kids is not an option be they fur or not.

Next showers or taking a bath gives off moisture.  Be sure that the bathroom fan is turned on during the bathing process, even in the colder months.  Wipe down the shower and bath area to reduce the amount of moisture that is evaporated back into the air of the RV.

Cooking is another moisture generator.  Keep lids on pans when cooking, to keep the moisture down, open a window a bit to let the warm moist air out, and turn on the kitchen vent if you have one.  Many of the newer RVs do not vent the stove vent to the outside.  This is not good, as an inside vented stove hood keeps the moist air inside the RV.  Do not let a tea kettle steam longer that is necessary.  Don't leave a coffee pot running all day long.  Make a cup as you need it or the coffee pot will add to the humidity in the RV all day long.

Try to locate any seals in the RV slides that is letting in outside air and seal that area.  You can cut strips of foam insulation like Reflectix or other foam insulation.  If you find caulking around the tub or shower stall or even around the kitchen/ bathroom sink is missing or cracking re-caulk using 100% silicone sealant like shown below.  This keeps water from going in the RV wood structure or supports where, if conditions are right, mold will start to grow.

100% Silicone Sealant

If it is during the colder months and your RV has single pane windows you might add Bubble Wrap to the windows.

Bubble Wrap

To install the bubble wrap do the following.

Cut the bubble wrap to the size of the window pane with scissors.
Spray a film of water on the window using a spray bottle.

Spray Bottle

Apply the bubble wrap while the window is still wet and press it into place.
The bubble side goes toward the glass.
To remove the bubble wrap, just pull it off starting from a corner.

This bubble wrap will help insulate the inside of the window from the outside of the window to further reduce moisture forming on the inside of the window when the outside air is colder than the inside air.

Do you dry clothes in the RV by hanging them in the bathroom?  Did you remember to turn on the exhaust fan?  It is not wise to dry clothes in the RV during the colder months because drying clothes adds to the amount of moisture inside the RV.  Do you have a combination washer/dryer?  Make sure the dryer is vented to the outside.  If you do not the dryer will add to the moisture in the RV.

If it possible let the RV inside temperature drop a bit in colder weather so the air inside the RV will hold less moisture.  Cooler air holds less moisture than warm air.  You may have to dress a bit warmer, but your RV investment will thank you for being a bit cooler.

Poor air circulation inside the RV can make mold grow in drawers, closets, and even cabinets.  Keep the air moving even when you are not inside your RV.  How may you ask? You can open two or more roof vents or a roof vent and crack a window so that air naturally flows in and out.  You can add a MaxxAir vent cover

MaxxAir Vent

over your current roof vents so that you can keep your vents open without rain or snow coming in the RV when the roof vent is open. You should put your RV in storage with vents cracked a little bit to allow for air movement.

If your RV does not have LED lighting you could swap out your current incandescent light bulbs for the LED equivalent.  This will reduce the about of air heating that the hotter incandescent bulbs are known for.  There is an LED replacement light for most all of the RV incandescent bulbs used in RVs. As an additional benefit, your RV battery will last longer during dry camping with LED lighting and depending on the LED light you buy you may find that the inside of your RV is now brighter with the lights on.

OK, we have talked about what not to do and some of what you can do to reduce moisture in the RV now let's get serious about stopping or greatly reducing moisture in your RV.
1. Get a dehumidifier.  They come in several sizes and types.
The ezest one to do business with is the bead type.

Eva-Dry Dehumidifier Beads

Twin Pack resealable packaging
100% silent operation
Lasts 45-60 Days
Indicator beads let you know when it's ready to be discarded.

You can spot these around the RV and in closets, cabinets, drawers where ever you feel or think moisture may be lurking.
Next, you have the mechanical dehumidifiers.

Eva-dry Electric Petite Dehumidifier Edv-1100, White

Whisper quiet
Renewable reservoir
Compact size is perfect for bathrooms, closets, and R.V.s
Low energy consumption
One of these usually works but if you have a severe problem you may want to consider two of them.

If you have an RV more than 36 feet long you may want to consider this one.

Ivation IVADM35 Powerful Thermo-Electric Dehumidifier

Squeezes Up to 20 oz. of Water a Day From Humid Air
Very Quiet Operation Due to No Moving Parts
At Capacity, Indicator Lights Up and Device Shuts Off
Compact at 4.45 pounds, 6.8" x 8.5" x 14"
For bunkhouse RVs,  you will need two.

And if you really need more moisture removal you can use a sticks and bricks type unit.

Keystone Energy Star 70 Pt. Dehumidifier

Removes up to 70 pints of moisture from the air per day
1.3-gallon water tank with transparent water level indicator, full bucket alert, and automatic shut-off when full
Removable, easy-cleaning dust filter with a clean filter alert
4 durable, rolling casters for easy movement

 It is generally felt that combinations of dry and mechanical work the best.

Well, that should about do it for this topic.  I hope you found the information helpful and can use some of the ideas presented.

Until Next Time







And finally, please remember that this blog is an Amazon affiliate. When you order something through any of the Amazon links, it doesn’t add anything to your cost, but I do earn a small commission on everything you buy. Just click on an Amazon link, then shop as usual.

What Are Those 12-volt Sockets Good For?

We have all done it.  Left the cell phone charger sitting on the kitchen table closed the front door, made sure everything was locked up and left for our weekend RVing get away.  If you have one of those not very smartphones you know that in 8hrs or less the phone will be dead and your Hot Spot, Weather App, and every game that keeps the kids quiet during the ride will come to an end.






What to do?  Have you ever wondered what the 12 Volt Standard Wall Plate that looks like this is used for?

2 Volt Standard Wall Plate 

Or maybe you will remember this 12 volt Wall Plate with Antenna Amplifier & Switch it looks like this;

12 volt Wall Plate with Antenna Amplifier & Switch

Both of these wall plates have a 12-volt power socket just like your car, truck, or RV does.  You could plug a car charger for your phone or tablet computer into the wall plate and it would start to charge your phone or tablet computer.  Ah, but you say you have a charger for your phone already why would you need another one for the Rig?  If you remember you left it on the kitchen table and left for this trip.  OK, now what?  Well if you bought one of these 12 Volt Single Outlet USB Charger which looks like this;

12 Volt Single Outlet USB Charger

Then all you would need is either the Apple Charging Cable which looks like this;

or the Android charging cable which looks like this;

Android charging cable

and you could charge your phone, table, or any USB device and never have to worry.   You say that you need to charge two USB powered devices at the same time.  Don't worry be happy and buy a Dual USB Charger which looks like this;

 Dual USB Charger

Now all you have to do is plug in the appropriate charging cable and you are good to go.  If you need longer charging cables than 6ft you can get them up to 10ft for both Apple products and Android products.  If you would like to be able to plug the charging cable into a normal wall outlet you can buy those also.  And for those of us that want it all you can buy the USB Charging Kit Bundle  The one shown below is for Android but they have them for Apple as well.

USB Charging Kit Bundle

But they have the Apple Charging Kit Bundle as well, which is shown below;

Charging Kit Bundle

Well, that should get you going and you can just plan on leaving any of the items we talked about in the Rig for the next time you leave the charging cable and power supply on the kitchen table.


PLEASE NOTE:  The following comments may not apply to all RVs.  Without checking the wire gauge behind the socket plate there is no way to be sure that the following products can be hooked up to the 12-volt socket in your RV.

Along with the ideas above, you can use the power plug to power small appliances such as a coffee maker

12-volt coffee maker

or maybe a 12-volt frying pan.

12-volt frying pan

Maybe you are boondocking and would like to use your PS3, or some other video game or even some device that only runs on AC.  Then you would use a DC to AC converter.

DC To AC Converter

This would allow you to power Dual USB ports that can charge most phones and tablets simultaneously (Max 4.8A total output), while two grounded AC outlets (300-350W) great for charging a laptop, breast pump, nebulizer, game console, kindle, TV, DVD players, lights, iPad, and other electronic devices.

The idea here is that if the park AC power fails you can use the 12 battery that powers your rigs lights, to make coffee while you wait for the power to be restored.  While you are refueling next time at a truck stop go inside a look at all the 12-volt appliance available to the trucking community that you can use in your RV or towing vehicle. [NOTE, not all 12-volt wiring can handle 12-volt appliances.]

CAUTION:  This is not a long-term solution for power outages as your rig's battery will run down very quickly if you make dinner this way with no way to recharge your RV onboard battery now that the AC power is out.











Until next time.

And finally, please remember that this blog is an Amazon affiliate. When you order something through any of the Amazon links, it doesn’t add anything to your cost, but I do earn a small commission on everything you buy. 

911, What Is Your Emergency? ----- Water!!!

Have you ever opened the Kitchen or Bathroom under sink cupboard doors only to find the contents wet or a bit damp?  To make  matters worse, you are dry camping (boon docking) and have no one around to ask what to do.  Well, wonder no more just keep reading to find out.







First you need to find the source of the leak.  This could be from water seeping around the top of the sink and draining inside the cupboard.  This is a simple and quick fix. Just use some Kitchen and Bath approved caulk, such as,

Kitchen and Bath Caulk

Follow the instructions on the tube and that water seepage should be a thing of the past.  I keep a tube of this product in white and clear in the RV all the time because you just never know.  But, what if that is not the problem?  

Next check all the black sewer pipes to be sure the fittings are good and tight.  The black drain pipe fittings should be hand tight not wrench tight.  Do be careful not to over tighten these fittings as you can break the pipe or strip out the plastic threads on the pipes.  I check these fittings every time in the Spring before the first camping trip and several more times during the year to be sure they are tight and doing just fine.  I did find a loose one in the Master Bathroom last year.  So all the black pipe fittings are tight and you still find water and things damp.  Now, what?

Well, there is really only one thing left.  The hot and cold water fittings.

From the picture above you can see the red (hot) and, in this case, the white (cold) water lines as well as the black plastic sewer pipes. Getting a bit closer, we see where the problem is.

The metal clip that holds the screw on connector has come a bit loose and the water is dripping out from that fitting on to the stuff under the sink.  It is not a flood but a constant drip.  This scenario is not good for lots of reasons and needs to be taken care of right now.  If you do not have the PEX crimping tool you will never get the metal squeezed tight enough to stop the slow leak.  

There is a quick and sure-fire way to fix this problem and end up with a far better connection than what the RV manufacturer used.  It is called a Shark Bite connector.

Shark Bite Push-on Connector

This is a push-on type of connector for the plastic hose and does not need any special soldering or tool to install.  You just cut off the leaking end and push on the Shark Bite.  Screw the female end to the faucet and you are good to go.

Please note to double check that after you cut off the old leaking connection, that you will still have enough plastic pipe to reach back to the faucet once you put on the Shark Bite.  The plastic pipe used in most RVs is 1/2" and the Shark Bite Connector you will need is the 1/2" type.  This connector is available in most hardware stores and the Big Box retailers of plumbing supplies. The packaging looks like below.

The package and product at my big box retailer was not hanging just stuffed  into a box on the shelf so I had to look a bit for it. 

So here is what I ended up with.

You can see on the red plastic pipe what I had before the switch and you can see by the white pipe what I have now.  My plan is to change over the red pipe connector to a Shark Bite type to ensure no more future leaks from this area.

Here is a convenience add on that I bought, just to help in replacing future connections with Shark Bite.  It is called the Shark Bite Deburring Tool. After cutting the old fitting off the PEX plastic pipe, you use this tool to deburr the pipe and the tool shows you how much of the plastic pipe you have to push into the Shark Bite connector to make a good water tight seal.

Shark Bite Deburring Tool

Again this tool is not mandatory.  It is just a nice convenience tool to have around.  One last tool you might want to pick up is the PEX plastic pipe cutting tool.  Again not a mandatory tool to have just a nice tool to have.

PEX Plastic Pipe Cutting Tool

Well, that is it.  If you have a water leak anywhere even a constant drip you need to fix it fast and the Shark Bite pipe fitting system is the fastest and easiest system I know of.  I keep a couple around because you just never know when you will need them and the cost is cheap insurance against a faucet connection leaking and damaging the rig.

I would like to thank Michael Cook who's Facebook posting gave me the idea for this post.

Until next time.

Don't forget to join the Weekend RVers group on Facebook a no DRAMA place with Hints, Tips, Free Stuff, Recipes, for every kind of RVer.

And finally, please remember that this blog is an Amazon affiliate. When you order something through any of the Amazon links, it doesn’t add anything to your cost, but I do earn a small commission on everything you buy. Just click on an Amazon link, then shop as usual.