11 RV Plumbing Necessities (Faucet to Poop Tank) - The Roving Foley's
rv necessities photo of sewer hose, shower head, and water hose

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11 Must-Have RV Necessities From The Faucet to the Poop Tank!

Putting together a set of RV necessities for the plumbing is one of the first and most basic tasks for RV living whether it be a motorhome, 5th wheel, or travel trailer. Once you get to the campground you have to hook up to water, sewer and electrical and there are just a few things you absolutely need to get the job done. 

As a side note, also make sure you have the proper RV tools to utilize and maintain this system as well as on the rig.  If you are not sure what RV accessories you should have, we have put together a list of our top recommended RV must haves.  

RV Plumbing System Basics

Talking about water hoses and black tanks may not be all that exciting, but it is important when you live the RV lifestyle.  

Let’s dive in, shall we?

“There is nothing worse than hearing your wife screaming and looking up to see poop water pouring out from your roof vent because you forgot to turn off the flush hose. (We’ve had that happen twice and no I’m not kidding!!!)”

What Every RV Needs For Plumbing Hook-Ups

There are a few plumbing related RV gadgets that are “must haves.” You need to bring water into the system or freshwater tank, and you need to dispose of the water from the gray and black tank. And you need to do all of this safely and in a sanitary manner.

Before we go any further, please make sure you have a box of disposable gloves close by so you can grab a pair anytime you need them and you will need them A LOT! While we do everything to keep the tank jobs clean, you are still dealing with poo water so best to stay safe. 

Water Supply RV Necessities

1) Water Hoses: An essential RV accessory, make sure you get one that is rated for potable water. 

These gloves have been invaluable on occasion especially when you are working with plumbing issues!  I like to keep a large box of these ones as I go through them pretty fast.

Typically these are white or blue in color. These drinking water hoses are also used for filling the fresh water tank when boondocking.  

2) Water Filter: As you move from site to site, state to state, it is difficult to know exactly how good the water supply is. 

water filter is one of those RV necessities that ensure you are getting good clean water to your faucet. City water supplies vary quite a bit and some of the more rural campgrounds will have well water which is typically high in minerals.

3) Water Regulator: The same thing applies to water pressure. RV’s typically have plastic pipes and are not capable of handling as much pressure as the pipes in sticks and bricks. 

So a water pressure regulator is a necessity to keep your RV plumbing safe. Regulators come in an adjustable style or non-adjustable.

This water pressure regulator is adjustable with a gauge on it so it’s easier to read.

4) Shower Head: Many times as you travel site to site, the water pressure will be less than optimal. There is nothing worse than a lousy shower so a good shower head is an RV necessity. 

This shower head is specially designed to increase the pressure at the head, ensuring that you get a really good powerful shower no matter what the water pressure.

Tank Flushing RV Essentials

6) Tank Flush Hose: When dumping the black tank, it is always advisable to flush it out. Over time built up solids can cause MAJOR problems so a little bit of due diligence is in order. I back flush my tank every single time I dump- better safe than sorry. 

A second flush water hose is a necessity. You should never use your fresh water supply hose to flush the tank as there is always the possibility of getting bacteria (poop) into that hose. Keep them separate. A grey tank hose is usually grey in color and will be marked as such. 

7) Sewer hose kit: this is also a must-have RV accessory. This hose is used to connect your dump valve to the sewer connection.   I highly recommend anything that Camco makes, this particular kit is considered to the best RV sewer hose on the market.

The kit includes the hose as well as accessories to properly (and tightly) connect each end. You don’t want a poop explosion- trust me!

8) Tank Flush Valve: If your rig is not equipped with a built-in tank flushing connection, a check valve with a flushing hookup is truly a must-have gadget. You can hook your tank flushing hose up to this valve and jet water backwards up into the tank, breaking up any solids that have not gone down the drain. 

I have a built-in system but I use one of these as well from time to time if things are not flowing smoothly. It can be a real life-saver. The clear plastic also allows me to see how things are flowing through the hose. 

9) Toilet Paper: If you are not using septic safe toilet paper- you are playing a dangerous game. We strictly use Scotts 1000. It is a single ply but does a fine clean-up job. 

It dissolves right away in the tank and will really help keep your black tank free from an issue. Whether you are full timing or just on a weekend RV trip, proper toilet paper is a must have RV essential.

11) Clear Drain Section: Gross as this can be, it is really helpful to see how the tank is draining and when it is clean. 

Once you see how much waste is left behind and become obsessed (like the rest of us) with the need to get it all out, you’ll get over watching poop flow and a clear connection will become one of your RV essentials.

How To Properly Flush RV Tanks

“Honey, the poop tank is burping!”

Yes, RV living is the ONLY lifestyle where THAT phrase is acceptable.

Now that you have the goods on the RV plumbing necessities, let’s look at best practices for dumping your tanks.

After all, having the must-have RV accessories is only as good as their use, right? Whether hooked up or using the dump station, it is important to get your tanks flushed right to avoid problems down the road. After over 3 years on the road, we have gotten down to a pretty good system.

The first thing you want to do is to dump the black tank. We prefer to call it the poop tank because we have little kids and they think it’s funny (me too.)

Dumping the poop tank first allows you to run the relatively cleaner grey water through the hose last, cleaning it out. Always check the connections on your sewer hose to make sure they are connected properly and pointing in the right direction.

A LOT of poop comes out through that hose quickly and you don’t want to find out too late that the hose was loose- TRUST ME!

This is especially important at the dump station as it is easy for the drain end of the hose to get turned sideways spewing poop juice all over your feet! TRUST ME!

Once the tank is “empty” it is important to give it a good flushing to clear out any solids that did not make it out during the dump. Otherwise, these solids can build up over time and create a real problem.

Proper Flushing of the Poop Tank

My rig has a built in flush system. If yours is similar, you simply can hook up a Grey Water Flush Hose to flush. DO NOT use your fresh water hose for this purpose!

I wait until the tank has fully emptied on its own to turn on the flush. This ensures that any “floaters” are on the floor of the tank and can get pushed down the drain.

I then watch the clear elbow (RV must-have) in my waste line to see what comes out. It is always surprising to see how much is left behind when you think the tank is empty.

I will run the flush until the water runs relatively clear and then turn it off, allowing the tank to drain again. Then I repeat the process until there is no more solid waste to be found.

A LOT of poop comes out through that hose quickly and you don’t want to find out too late that the hose was loose – TRUST ME!

Every couple of dumps I will fill the tank a couple of times with clear water using the flush system and drain it just to make sure it is getting cleaned out well. This is a dangerous process as it takes a few minutes and it is easy to get distracted. DO NOT GET DISTRACTED!!!

There is nothing worse than hearing your wife screaming and looking up to see poop water pouring out from your roof vent because you forgot to turn off the flush hose. (We’ve had that happen twice and not I’m not kidding!!!)   

Even though I use a hose splitter to hook up both hoses, I religiously disconnect the flush hose after each use. That way I can always see if I have forgotten something.

Once the flushing is done, let the flush hose run water into your tank for about 30 seconds to a minute. That way you start the new tank with a bit of water in the bottom. Then add a little bit of Rid-X into all of the tanks to keep them stink free. It doesn’t take a lot – one box should last a couple of months.

While these are just some of the basics, there is nothing worse than having water or tank problems on your RV camping trips. These RV essentials and practices will help make sure your next excursion “flows freely.”  Sorry, not sorry!

Did we miss anything on the list?  If so please share below in the comments. 

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