16 Oz: How Much Water Does An RV Toilet Use Per Flush?

How Much Water Does An RV Toilet Use Per Flush? There is no exact number because it depends on the toilet in your RV but there is an average of 16 ounces.

Getting the best experience out of RV camping, you need your comfy spots right inside your trailer. And at the top of the list comes a good, clean toilet. Answering nature’s call shouldn’t be a nightmare anymore.

How Much Water Does An RV Toilet Use Per Flush

How Much Water Does An RV Toilet Use Per Flush?

On average your RV toilet can use Sixteen ounces of water per flush. It really depends on the size of your toilet. Some toilets only use a quart of water while others use a quarter of a gallon of water per flush.

There are other alternatives that use less or even no amount of water for flushing. For example, vacuum or macerator and compostable toilets.

Vacuum toilets use very little water because it uses vacuum power to pull the waste through a flexible tube. It is then sent to a holding tank away from the bowl. Other composting toilets will require no water per flush or deposit 🙂

It will save you a huge amount of freshwater from being wasted for flushing. If your toilet has a foot pedal operated toilet, it draws a lesser amount of water when compared to electric flushes.

Low-flow flushing toilets are also available in markets. It will come in handy when you are boondocking.

Related: What Do You Do When Your Toilet Is Clogged with Poop?

Should You keep Water In RV Toilet?

Yes, you should keep water in RV toilet bowls. They should always have water in them and should be flushed for at least 10 seconds.

RV black and grey tanks require lots of water to control odors, help with breakdown, keep sensors clean, and stimulate waste-digesting bacteria.

The only exception is when you take your camper to drive around. It’s better to remove the water so that it won’t spill on the floor. Also during off-seasons, because it’s simply not necessary.

Related: How Long To Keep Fresh Water in RV Tanks

Should You Poop In Your RV?

Yes, you should poop in your RV toilet. RV toilets can handle all human waste. If you are properly maintaining your black tank and RV toilet, plus using plenty of freshwaters when flushing, you will be able to poop in your RV without experiencing clogs or smells.

Related: Best RV Portable Black Tank

Can I Pee in My RV? Yes, you can pee in your RV bathroom.

Can You Pour Hot Water Down RV Toilet?

Yes, you can pour hot water down RV toilet bowls, especially when you have a clogged toilet in your RV. It is best if the water is boiling hot.

As the hot water flows from the toilet valve into the black tank, it will help dissolve whatever is blocking the way. The boiling water method usually works for clogged toilets and it’s straightforward.

Related: How Do You Get Rid of The Poop Pyramid in RV Black?

How Long Can You Leave Black Water In Your RV Tank?

A week is the longest you should leave black water in your RV tank. If you’re new to RVing or to your particular Camper, you will get in a groove of dumping your grey and black water tanks.

So, eventually, you will get to know how long it takes for your holding tanks to hit capacity (of course you want to dump before you hit capacity)

Make sure to add water to the tank and add a holding tank cleaning chemical to avoid odor and backup.

Related: How To Sanitize RV Water Tanks

Can You Use A Snake On A RV Toilet?

Yup, you can use a snake on an RV toilet. Make sure you get one long enough and sturdy enough to really grind up anything in the pipes.

The RV toilet snake should be reserved for clogs that have not been fixed with other methods, as well as problems that are not caused by a full black water tank.

Wrapping up: How Much Water Does An RV Toilet Use Per Flush?

How Much Water Does An RV Toilet Use Per Flush? The amount of water used to flush an RV toilet varies according to the length of time the foot pedal is depressed. Usually, an RV toilet uses about 16 oz of water to flush liquid waste, and it’s recommended to use up to 1 gallon of water to flush solid waste to avoid solid waste build-up in the black tank (also known as an RV poop pyramid).


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