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how does an rv septic system work

by Dr. Jarred Spinka DDS Published 2 years ago Updated 2 years ago
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A camper septic system works by simply acting as a holding tank for your sewage. It's not a SEPTIC TANK that works like at a house. With an RV septic system there are no leach fields, no breaking down needed (not really), none of that. It holds your sewage until you dump it.Aug 15, 2022

Full Answer

What does an RV septic system look like?

What does an RV septic system look like? 1 1. Fresh Water Tank. There are usually three tanks on an RV: fresh water, grey and black. As the name suggests, this tank is for fresh water. This is ... 2 2. Grey Water Tank. 3 3. Black Water Tank.

How does a small septic system for travel trailer work?

A small septic system for travel trailer varies from simple to complicated, but all models share some basic components. Most RV septic tank systems will at least have a: The water from the kitchen sink and shower goes to this tank. This water mainly contains soap as contaminants.

How does an RV sewage system work?

Some RVs have “pumping” toilets that literally pump the flushed debris from the toilet to the black tank. This is required if you have a REAR toilet and your black tank is mounted mid-way in the coach. The rear-bath-floorplan is becoming more common. Your RV sewage system is not like that home septic-tank system in operation—but only in theory.

How to connect RV waste discharge pipe to septic tank?

It is the septic tank that will separate liquid and solid waste. Now, connect the other end of the PVC pipe to the septic tank. The PVC pipe from the 2nd step will connect the RV waste discharge pipe with the septic tank. Inspect the connections to make sure that there are no leaks.

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How often do you empty RV septic tank?

How often you need to empty your tanks is relative. If you are traveling with a large number of people, you may need to empty your tanks every other day. If it is just you and your spouse, once a week may be enough. A general rule of thumb is to wait until your tanks are about two-thirds full before emptying them.

How do you empty the septic tank on an RV?

Hook up one end of your sewage drain hose to the black tank valve on your RV. Secure the other end of the hose to the valve at the sewer line or dumping station. Pull the valve to empty the black tank, allowing it to drain completely. Flush the black tank with water to clean it.

What happens when RV septic is full?

Tanks are typically made out of plastics and polymers. If your tank has filled beyond capacity then the materials may give out due to weight and pressure. This will cause the waste to pour into the area that the tank occupies. The waste will also spread anywhere that a liquid can go.

How do I know if my RV septic tank is full?

The RV industry uses very cheap sensors that deliver poor results. Even though your gauge is saying your tank is completely full, it may only be half-full. The only way to tell for certain how full a black tank is, is when it backs up into your toilet.

How long can black water stay in RV tank?

You should not leave matter in your black water tank for more than a week. Your black water tank should be emptied once it's ⅔ full and/or at the end of every trip. If that isn't possible, make sure to add water to the tank and add a holding tank cleaning chemical to avoid odor and backup.

Can you empty a camper toilet into a septic tank?

Conclusion. In summary, yes you can dump RV waste water into house septic systems. Don't use chemicals in your black water tank that may destroy your tank's natural ecosystem.

How long does a 30 gallon black water tank last?

A 30-gallon black water tank can last up to six days.

Should you leave water in your black tank?

There are always seasonal campers who will still go on trips into the late fall and could potentially be short-term storing their RVs into the time of year where freezing temperatures can arrive. Obviously, if you know temperatures will drop below freezing, do not store water and treatment in your black tank(s).

Should you poop in your RV?

Should you poop in your RV? RV toilets are designed to handle all human waste, including your poop. If you are properly maintaining your black tank and RV toilet, plus using plenty of fresh water when flushing, you will be able to poop in your RV without experiencing clogs or smells.

Can urine go in grey water tank?

The water from the shower goes straight to your gray water tank, and urine should go to the black water tank. However, sometimes urine ends up in the greywater tank. You know, like if you have kids showering in the RV. In this case, you will just need to add extra cleaning steps to keep your gray water tank clean.

Can I shower if my septic tank is full?

To answer the question about showering when the septic tank is full, consider what you mean by “full.” If you suspect that it's full in terms of needing to be pumped as soon as possible, then it's probably wise to try and shower as little as you can until that happens.

Can you put bleach in RV black water tank?

Cleaning your black water holding tank is best done when you're fully hooked up and have both a water and sewer connection. Avoid using bleach or antifreeze for your deep clean, as both of these can dry out rubber seals and ultimately ruin your sewage system.

How do I drain my RV black tank at home?

Plug in your macerator pump, and open your RV's discharge valve. Turn on your macerator pump and the fresh water hose. Note: Most macerator pump instructions will say to not leave the pump continuously running for more than 15 minutes at a time; the macerator will drain most standard tanks in about five minutes.

How do I drain my RV black tank?

1:033:27RV Quick Tip - How To Dump the Grey and Black Tank - YouTubeYouTubeStart of suggested clipEnd of suggested clipLightly open the gray tank by pulling on the gray handle. Confirm there are no leaks and close theMoreLightly open the gray tank by pulling on the gray handle. Confirm there are no leaks and close the gray. Then open the black all the way let the tank drain.

Where do you empty RV toilets?

All of the waste from the RV toilet empties into the black tank (the rest of the waste water from the RV showers and sinks empties into the gray tank). Black tanks vary in size anywhere from 15 gallons to 50 gallons.

How do you empty the black tank on a travel trailer?

3:487:37How To Empty Your RV Holding Tanks | Pete's RV Quick TipsYouTubeStart of suggested clipEnd of suggested clipI'm going to take this into my hose. And hook it up to the clear portion that we just installed. AndMoreI'm going to take this into my hose. And hook it up to the clear portion that we just installed. And these just twist right up. Like. So I'm going to take this and just kind of dump it down the hole.

How Does An RV Park Sewer System Work?

There are two different sewer systems in RVs and how they work differs:

Why do motorhomes use macerator pumps?

Some motorhome manufacturers usually make use of macerator pumps to move waste from a passenger’s-side discharge tank to a driver’s-side sewage-dump connection , again, this is due to the omslope, and often a motorhome chassis is in the way of running directly to the discharge.

Why do RV tanks need to be maintained?

Due to the large amount of toxic substances that is dumped from different rv holding tank into the sewer system, it needs to be properly maintained so that it can serve its purpose for a long time.

How does a toilet flush?

The toilets usually have a two-position flush valve; the first which fills the bowl with water , and the second which flushes the bowl, this is activated by either a hand lever or a foot pedal. When the toilet is flushed, a sliding blade or ball valve opens up and this empties the contents down into the pipe.

Where does soil go when you flush a toilet?

Usually in a regular home, the soil stacks run into the cellar or below the foundation and then out to the sewer or septic system, so once flush your toilet or open a drain it goes out of your house.

Why do RV parks have septic systems?

An RV park septic system, therefore, helps to protect the environment because it creates a safe option for the dumping of RV holding tanks.

What is a holding tank made of?

The holding tanks are usually made of polyethylene or abs plastic and depending on the type of tank, the pipe fittings can either be glued or spin welded in place. Both tanks are also vented through the roof via a 1½-in pipe.

What Is a Septic Tank?

The term “septic” denotes the anaerobic microbial decay of wastes. These are mostly located underground. Concrete, fiberglass, or thick plastic tanks are widely available as septic tanks. The tank holds the solid and liquid waste and natural microbes help with decomposing wastes.

How long is the plumbing pipe in an RV?

The opening stays sealed with a lid. Open the cover and connect a 5 to 10 feet long PVC pipe.

How to cover gravel with rosin paper?

Place rosin paper over the gravels so that mixing up dirt with stones can be stopped. Put an extra layer of soil over the rosin paper to complete the covering process .

What is wastewater dumping system?

A wastewater dumping system is an infrastructure of pipes and hoses built within the RV. It facilitates the discharge of gray and black tank contents into a dumping facility within the campground.

What is gray water tank?

Gray Water Tank. The water from the kitchen sink and shower goes to this tank. This water mainly contains soap as contaminants. It is devoid of solid and liquid waste in the trash disposal or toilet. It is not potable water but you can use it for cleaning the RV or the black water tank. A graywater tank for RVs.

Can you build a septic tank for an RV?

The RV and surrounded camping area could become highly unhygienic without a proper septic system. Therefore, constructing an RV septic system has many advantages. By following how to build a RV septic system steps, you can quickly set up a wastewater septic tank. It helps in situations during remote camping when there are no dumping stations nearby.

Where is the main sewer pipe in an RV?

In the beginning, locate the main pipe for sewerage purposes in the RV. It should be at the automobile’s backside and beneath the trailer, where black and gray water tanks are available. Refer to the RV manual to know the exact location.

How to dump black water in toilet?

If you have to dump black early (less than 1/2 full), run extra water into the tank. Use your flush hose and run it through the bathroom window to rapidly fill the black tank through the toilet. Clear sewer connections allow you to view the sewage but you simply cannot know if any solids are left in the black tank.

How to get rid of grey water in toilet?

Open the grey tank valve and dump the grey water. By having your grey water tank mostly full of sudsy water (showers, dishwashing, etc.), this liquid-soapy mixture will rush through and actually wash out residue in the sewer hose. Put in the toilet chemicals.

Why is head pressure important in a sewage tank?

So when your tank valve is opened, that head pressure helps force sewage out through the hose.

What does a black tank flush do?

Do notuse your white water hose for anything other than potable water! The black tank flush will help keep your tank monitors from malfunctioning and help wash more debris out of the tank.

How to clean grey water from sewer line?

Open the grey tank valve and dump the grey water. By having your grey water tank mostly full of sudsy water (showers, dishwashing, etc.), this liquid-soapy mixture will rush through and actually wash out residue in the sewer hose.

What to do if your hose is too long?

If your hose is too long because you are parked too close, position it in a long, gentle downhill curve —no tight turns, Figure-8s, or hills to climb. Look at this real hookup (below). With this setup, the sewage must traverse some difficult twists and turns and, at one point, actually go straight up.

What happens if you don't have liquid in your holding tank?

Without sufficient liquid in your holding tank, you end up with a cone of crap in your black tank —hard to get rid of (difficult to dump) and expensive to repair—not good. Plus, your home toilet flushes debris through a curving water channel. This creates an effective water seal to prevent odors.

Step 2

Attach a 5- to 10-foot piece of PVC pipe to the main plumbing pipe coming out of the RV. This pipe extends horizontally and should be attached with a clamp which can be removed easily to travel with RV.

Step 3

Measure the distance from the inlet hole to the bottom of the tank. This measurement needs to be the depth of the hole from the bottom of the pipe.

Step 4

Dig a hole and set the tank in it according to your measurement.. This is the septic tank, which will separate the solid and liquid waste.

Step 7

Glue an elbow onto the end of the drainpipe facing down toward the bottom of the tank.

Step 8

Dig a 10-foot ditch from the end of the tank at the outlet hole, pitching down 1/8 inch per foot.

Step 10

Glue a PVC elbow on the outlet pipe in the tank facing down toward the bottom of the tank.

Step 13

Add a 2-foot length of 4-inch PVC perforated pipe to the end of the PVC solid pipe. The perforated pipe should end in the middle of the stone filled hole and slope down 1/8 inch per foot.

What happens if you don't remember when your septic tank was last pumped?

If you cannot remember when your septic tank was last pumped, this could be your first sign to expect a system problem sooner than you think. Neglecting to have a septic tank pumped over a long time slows down the decomposition process, leading to blockage and sewage overflow. Over time, excrement, food, and other solid wastes build-up, and if left to accumulate, the septic system could give up and back up completely.

How does a septic tank work?

Most modern septic tanks utilize multiple chambers and baffles to maximize the wastewater’s holding time inside the tank. This allows more time for the solid waste to separate from the liquid and for the bacteria to digest it. This is important as this limits the amount of solid waste that ends up in the drainfield. Accumulation of solids in the drainfield can lead to clogs and, eventually, system failure. Incoming waste is directed downward in the tank, minimizing disruption to the rest of the tank’s contents. A wall baffle between chambers helps keep most of the sludge out of the final chamber, the contents of which are first to leave the tank for the drainfield. Below is a simple diagram of a multi-chamber septic tank.

What is a conventional septic system?

In a nutshell, a conventional septic system consists of a septic tank and a septic drainfield (also known as a leach field or soil absorption field). It is in the septic tank where the separation of solid and liquid wastes present in wastewater happens.

Why is grass greener in a septic tank?

You may have heard the expression, “grass is always greener over the septic tank.” Actually, this is more accurate for the drainfield where the grass really is greener due to the presence of moisture and nutrients in the area. In a healthy and properly-functioning septic system, all the bacteria that are required to process waste is naturally present. Bacteria that aid our own physiological digestion travel with waste into the septic tank, where they feed and thrive. With each flush of solid waste, new colonies are added.

How does wastewater run out of a house?

All wastewater runs out of your house or facility through one main drainage pipe connected to your septic tank.

What is a septic system?

Septic systems are dedicated on-site wastewater treatment structures, typically relied on by properties situated in rural areas with no centralized sewer system access available. These systems use a combination of nature and reliable technology to treat wastewater from the household’s or building’s plumbing coming from its bathrooms, kitchen drains, and laundry. Simple yet effective, these tank-and-soil absorption systems remove solid matter from wastewater and send the treated wastewater into the ground, where filtration, helpful microbial activity, and time all work together to render clean water safe for release to the environment.

How do bacteria work in a septic system?

Beneficial bacteria break down waste, removing harmful pathogens in the process, leaving the water clean enough to safely filter down to the ground. These helpful bacteria are present in the septic tank but do most of the “hard labor” in the drainfield.

What is 120V in RV?

The 120v system is generally used when you’re plugged into RV hookups. You can use everything you’d use in a normal house–your RV’s air conditioner or a fan, a microwave, plug in and charge your computer or phone, hairdryers, the whole shebang–though not necessarily all at once.

How long does it take for a RV refrigerator to cool down?

Also note that most RV refrigerators that are warm take several hours to cool down when you’re not plugged into a dedicated source of power like 110v / 30amps.

Does water come out of a faucet when camping?

No Water Coming out of the Faucet when Dry Camping. So you’re boondocking and the water pump is running (because you can hear it), and you know for sure you’ve got water in the tank. But nothing is coming out of a faucet. If it’s a high faucet, like in the kitchen, check if the typically lower down sink faucet works.

What does a red handle on a RV mean?

This is typically a somewhat circular handle, often painted red, that you can turn (it looks like the water handle behind a washing machine or on your garden spigot, for example) and it will allow water to drain from the lowest point in your RV . Sometimes there are multiples of these.

How to make sure there is no fresh water in your water system?

Make sure there’s no freshwater left in the system. Turn on your water pump, and open up your lowest faucet. This is typically the one in the bathroom, as the kitchen sink tends to be higher. When there’s no more water, head back to the sink (or any other faucets) and double check those. Leave them all open.

What to do if your pump isn't working?

If you hear nothing, the pump isn’t working. Check the wiring if you’re able. Call someone if you’re not. It may be as simple as a blown fuse (more about fuses below) or a chewed up wire. Or your pump might be worked out.

How much does it cost to winterize an RV?

They’ll charge you $50 to do it at a service center, but it’s painfully simple. Dump your grey and blackwater tanks.

How do Septic Tanks Work?

Septic tanks have two separate compartments that filter through wastewater and separate solids from liquid. As the natural bacteria in the septic tank breakdown the wastewater it’s dispersed into the soil where it sinks down and is filtered through the soil.

Why is it important to remove the lid of a septic tank?

Because septic tanks work using natural bacteria to breakdown wastewater it’s important to keep balances in check. If your septic tank doesn’t have a clean out, you might be tempted to use to remove the lid. Although you can do this it’s dangerous as exposure to too much air can kill the natural bacteria in the tank and the gas trapped in ...

What happens if you put too much wastewater in your RV?

As wastewater gets put into the system wastewater is pushed out. If too much wastewater is put in at one time sludge can make its way into the leach lines and clog the system. Be prepared to have the system cleaned more frequently if you used the RV plumbing frequently. This will help prevent any problems later on down the line.

Can you clean a septic tank with coffee grounds?

Septic tanks require a specific balance between the bacteria and wastewater to work properly. Any cleaning solutions, toilet wipes, and even coffee grounds can be damaging. Making sure that you aren’t dumping excessive amounts of these can help your septic tank last longer.

Can you put an RV in a septic tank?

The short answer is that yes, it is possible to connect your RV into your septic tank, but you need to make sure that you do it correctly. Before we get into how you can connect the two it’s important to first understand how a septic tank works.

Can you leave a septic tank hooked up all the time?

You can choose to leave this hooked up all the time so that any wastewater automatically goes into the septic system or you can choose to wait and empty the tank all at once. Keep in mind that some people believe that adding too much waste to a septic tank at one time can cause shock to the system. Because septic tanks work using natural bacteria to breakdown wastewater it’s important to keep balances in check.

Is it dangerous to dump gas in a tank?

Although you can do this it’s dangerous as exposure to too much air can kill the natural bacteria in the tank and the gas trapped in the tank can actually be fatal to humans. If you choose to do this make sure that you dump in the correct side.

Do you have a septic system?

You may already know you have a septic system. If you do not know, here are tell-tale signs that you probably do:

What is a typical septic system?

A typical septic system consists of a septic tank and a drainfield, or soil absorption field.

How does a septic system work?

Specifically, this is how a typical conventional septic system works: All water runs out of your house from one main drainage pipe into a septic tank. The septic tank is a buried, water-tight container usually made of concrete, fiberglass, or polyethylene. Its job is to hold the wastewater long enough to allow solids to settle down to ...

What exits the tank into the drainfield?

The liquid wastewater (effluent) then exits the tank into the drainfield.

Does wastewater percolate into the soil?

Finally, the wastewater percolates into the soil, naturally removing harmful coliform bacteria, viruses and nutrients. Coliform bacteria is a group of bacteria predominantly inhabiting the intestines of humans or other warm-blooded animals. It is an indicator of human fecal contamination.

How often should I empty my RV tanks?

There’s no hard and fast rule about when to empty your tanks — it all depends on how much you use them .

Why flush gray tank after black tank?

Flushing the gray tank after the black tank helps flush any solids stuck in your sewer hose. If you keep this valve open, you will not have that extra water to flush out the sewer hose after the black tank. For easy clean up, go slowly when detaching the sewer hose.

How to empty a black tank valve?

To empty, pull the valve and let the tank drain. Close the valve when you can no longer hear any liquid coming through the hose. Ensure the valve is closed completely. This is very important. Leaving a black tank valve open is an absolute no-no. It will cause all the liquid to flow out, leaving the solids no way of draining.

What to do if your tank smells?

If the tank begins to smell, it may be contaminated. Use household bleach to clean the tank.

How to keep a tank running?

In general, regularly flushing along with cleaning and sanitizing your tanks will keep the system up and running fairly free of problems.

What does a black tank in an RV mean?

The black tank holds waste water from the toilet. If your RV does not have a gray tank, all dirty water is dispensed into this tank. When not maintained properly, any one of these tanks can cause problems.

What is the best tank for RV shower?

1. Fresh Water Tank. There are usually three tanks on an RV: fresh water, grey and black. As the name suggests, this tank is for fresh water. This is the water that comes out of your taps. 2. Grey Water Tank. The grey tank holds the dirty water from your RV shower and the kitchen sink.

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