How to Refill Fresh Water Tank during Camping – Best Ideas to Refill RV

You may be wondering how to refill fresh water tank during camping. When you are camping in your RV and are not connected to a water supply other than the freshwater tank, you need to carry out projects for added water, assuming the RV water tank is empty.

To accomplish this, you must pack a few mobile water containers that you can use to fetch water elsewhere and bring it to your RV. The water collected in these mobile containers can be used to top off the RV’s fresh water tank. It is substantial to understand what type of water containers you should purchase. It also requires understanding where you can get clean water while camping and successfully filling an RV fresh water tank with a pump throughout the campsite with water.

In addition to studying how to fill a freshwater tank throughout the camp, you must also check how to manage the water instead of being agile.

How to Refill Fresh Water Tank during Camping

Filling a tap

One way to complete the freshwater tank is to connect it to a water tap.

If you manage to detect a water tap of some kind near the place where you are camping, you can run a hose from the tap to the mobile home tank if you are trying to escape from the camp and the distance between them is not so huge.

A tap makes it possible to fill the tank in the shortest possible time.

Read more: How to Clean Black Tank on RV

How to Refill Fresh Water Tank during Camping
There are two primary ways to do this.
  • The first is using only one valve connection, and the other is using separate links designed individually to complete taps and complete employing water containers.
  • The first thing to do when refilling with a tap is to get the right hose. They are made to transfer clean drinking water. Now, you must connect a radical, usually orange, to the water source you located.
  • Some campsites have a water supply, and you can put the hose on the supply’s taps.
  • Make sure the hose is acceptable fitted to the tap so you do not end up wasting water.
  • Put the other end of the hose correctly on the RV’s potable water connection only.
  • Adjust the valve so that the water runs smoothly to fill the tank.
  • A water pressure regulator on a hose stem helps you know if the water source pressure is good or high enough.
  • High source water pressure can damage your RV water lines.
  • Always check the pressure regulator to understand if the supply pressure is OK.
  • When you gently turn on the supply faucet, you will need to make sure that the tank fill is controlled to prevent water from being wasted.
  • If you had another person parked on the recreational ride to check while the water is filling the tank, it would be spectacular.
  • Overflow valves are placed inside recreational transports to prevent overfilling and waste of water. It would be spectacular if your RV had one.
  • You can turn off the faucet and get rid of the hose after the freshwater tank is filled.
  • Close the water tank lid properly so that dirt does not get into the freshwater.
  • When recharged with local water, you are not required to turn on the water pump. It only does this when you are using your freshwater tank.

Recharge with a pump

  • When you waste time over an extended period, you will need to use an alternate procedure, such as a water pump, because you will not be connected to the regional water or camp water supply.
  • You will need some additional water containers that you can connect externally to your VR.
  • Fill the containers with fresh water that will serve as a refill when the RV tank is emptied. This will ensure that you can waste more time.
  • Link the external containers to the RV’s fresh water tank through a drinking hose.
  • Set up a water pump, with a capacity of precisely 12 V, by connecting it to your truck’s battery. You’d need alligator clips to do that.
  • Please turn on the water pump and start filling the tank with cold water, following the same steps as when you fill it with a tap.

Click here to read more about how does an rv furnace work.

How to Refill Fresh Water Tank during Camping

Complete with gravity support

  • This tends to be the procedure that fills the RV fresh water tank when there is no water pump or tap.
  • It requires merely a mobile water container filled with fresh water. Remember to fill some portable water containers when you go out in your RV.
  • Fill a small amount of cold water into the mobile/portable water container.
  • Gently raise it to a level where you can easily tilt the mobile container’s mouth over the opening of the RV tank and refill the tank.
  • Proceed to pour the contents of the mobile container into the freshwater tank.
  • You may need to use the freshwater hose if you have trouble locating the jar mouth on the tank opening.
  • If you are going to use a drinking hose, you will also need a funnel to connect the jug to the hose.
  • Since you are using gravity, you will need to locate the carafe mouth above the tank opening.
  • No matter how you choose to fill the RV tank, you will need to turn on the water pump.
  • Doing this when the tank is full to some extent will ensure that the hot water tank gets its share of water.

Recreational Water Filters

Some mobile homes also use separate filters in the kitchen sink and sometimes in the bathroom, and it is advisable to change them every six months.

When you use your freshwater tank, you will be impressed by how agile it is instead of connecting to the region’s water.

On the other hand, there are some ways you can make your water tanks last longer when you are in the wild, and these have the possibility of differentiating themselves by prolonging the duration of your camping trips.

One of the fastest drains of your supply is the shower. When dry camping or boondocking, make sure you and someone else who uses the rain know that water has limits, so it is as fast and inexpensive as possible.

Another considerable water customer in your RV is doing the dishes, so this is another area where you should pay attention to your water usage and save the largest proportion of water viable.

You can add it back into the system or use it for drinking or cooking. Always turn off the faucet or shower as quickly as you can, do not let the water run much longer than it is essential. It is a little waste.

The longer you manage to make your water last, the longer you will be able to camp out, waiting longer between connections.

portable fresh water tank with pump

How Many Liters of Water does an RV have?

If you’re wondering how much water your RV tank can hold, you need to understand RVs’ different sizes and associated tank sizes.

Smaller recreational transports have less water capacity. Among other things, Class B recreational transports have a water capacity of 18 to 40 gallons. Larger RV sizes have the potential to require higher gallon abilities.

Class C recreational transports are capable of holding up to 38 gallons of water. What is important is to study how to sustain water consumption so that the water supply does not run out quickly.

After all the guidelines given about filling up freshwater tanks throughout the camp, you should successfully fill up the RV water tank on your own.

You should always be aware of the fact that it is not enough to concentrate on recharging.

You should also concentrate on managing your freshwater resources, especially if you are camping in your time frame and require water to clean yourself. So, have a freshwater RV tank done with this.

If you are camping in the dry, there is a big chance that you will not be near any regional water supply or the camp water supply.

Learn more: How to Keep RV Pipes from Freezing While Camping

rv fresh water fill adapter

How to Refill Fresh Water Tank during Camping: FAQs

Why does my freshwater tank fill up when I am using city water?

When the water pressure of the region feeds fresh water into the new water RV tank inside, it means one of two things: a “quick fill” valve is left open, or the check valve on the pump’s water outlet side has failed.

If your bus is equipped with such a lightweight fill valve. It has likely failed even if it is in the off position.

There is no requirement to replace the entire pump.

Add an aftermarket online check valve to the pump outlet fitting. Now, leave the defective one in the pump if it is impossible to remove.

If it is stuck in the open position, it will still leave the water flow. The novel online check valve will prevent the water pressure in the region from refilling the tank.

How can I tell if the fresh water tank is full?

The only way to know is to look at the gauge or listen to the water coming out of the tank overflow. If you have gravity fill, it will splash (or overflow if you use the region input to fill).

Is it possible to fill a water tank from the bottom?

Yes, you can. Feeding the tank from the top will exert the maximum recurring head on the pump until the tank is full. Providing from the bottom leads to an increase in height from the top to the maximum size. Also, bottom-feeding will reduce energy consumption and time by half if the same fitness pump is used.


Using an RV fresh water fill adapter can save your life if you are camping. The initiative is to make the water more viable and have quality water. This is a development you can do without a professional’s assistance; on the other hand, you must continue all the steps in the right way.

Try to look for a portable freshwater tank with a pump too. Hope you have learned how to refill the fresh water tank during camping.

Alix Johnson Romi

Alix is the Co-founder of Easy Trip Guides. She started with Michael to share her love for the outdoors with people from all around the globe. She started as an outdoor lover while skiing and snowboarding in the backcountry of New Zealand with her future husband, Antonio. They shared a dream to see the world, so in 2013 they set off to cycle from California to Argentina. The freedom of the open ice route, living close to nature, and the total annihilation of her comfort zone fueled Alix's desire to keep exploring long after the bike trip was over. Her adventure addiction has taken her scuba diving with hammerhead sharks, hiking to the K2 base camp, kiteboarding in Sri Lanka, and kayaking in Antarctica. Through these experiences, she has developed a strong belief in the power of adventure to reconnect people to nature, provide meaningful jobs to impoverished communities and promote the conservation of wild places and animals. At Easy Trip Guides, she covers snowing, skating, snowboarding, and skiing as she loves to do these outdoor adventures a lot.

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