Auxiliary RV Water Tanks!

Auxiliary RV water systems create an improved experience for RV boondocking enthusiasts

RV’ers are naturally excited about having the option to stay anywhere, at any time. Being “off-grid” creates a reliance on the basic elements we all depend on. To have enough of the essentials, like water, has always been a challenge when staying in locations without hook-ups. The good news is that some all-new solutions are available which can dramatically improve the quality of any boondocking experience.

The Big Problem

Within the RV chassis, tank space is at a premium. Competing for space with everything from spare tires to generators to stabilizer jacks. Moreove there are weight distribution considerations that leave manufacturers stretching their limits with tank sizes. Black tanks always seem to get the fair share. This makes sense when considering the disasters that could occur without optimal space. 

Therefore fresh and grey water tanks end up quickly reaching maximum size and frequently come in odd-sized combinations. This leaves plenty of freshwater in the tank and limited room in the grey water storage tank.

In the end, the user typically resorts to conservation efforts that can hinder their experience and bring amenities to a halt. This limits shower time, kitchen sink usage, and even use of the precious toilet. Daily showers, washing dishes, and brushing teeth all become an exercise in minimization.  The good news is that there are now solutions available that improve the experience people can have off the grid. Alternatively even staying in camps with partial hook-ups.

Boondockers have resorted to a wide variety of homemade solutions to have the freshwater and grey holding tank capacity needed for a comfortable stay. Probably the most rudimentary, and original solutions have included packing the car with jugs of water. Before environmental concerns were what they are today, dumping the greywater on the ground as far away from the RV as the hose would reach was a solution.

Some may remember when RV’s came with a foot-pumped sink with a drain, which was considered a big luxury at the time. To have enough to get through a stay, fresh water was sometimes poured into a funnel mid-trip to refill the tank. Consumer demand eventually led to RV manufacturers installing larger holding tanks, and eventually 12V pumps. But that is still not enough. RV’ers, and especially boondockers continue to want more capacity, and still to this day are seen pouring water from jugs into the tank to get through the weekend.

Different Options

Over the years, the accessory market has provided a few options to supplement fresh supply limitations. There are large, water-bed-like bags available that can be filled with fresh water, and the traditional 7-gallon blue plastic containers are still available. 

As for the greywater, other than moving the RV to a dump station in the middle of the stay, there have been even fewer accessory options available. The most common method is a tote-style capture tank that can be gravity filled and pulled by hand or by vehicle to a dump station. If that dump station is nearby and does not require use of public roads. Totes have their place in paved, dedicated camping areas with a centralized dump station. However, they are not truly designed for more remote destinations far off the beaten path.

Unfortunately, the worst outcome of limited greywater holding space is the dumping of wastewater on the ground. This practice is illegal in almost all situations, including areas maintained by The U.S. Forest Service, National Park Service, Bureau of Reclamation, Bureau of Land Management and Army Corps of Engineers. These areas all have regulations making it illegal to dump wastewater on the Federal lands that they maintain. The RV community continues to stress the importance of the responsible dumping of all RV related waste to help preserve access to desirable areas and prevent environmental concerns from outweighing the recreational use of public lands.

The Big Solution

Now that RV’s come with all the amenities of home, like multiple sinks and faucets, residential-style showers, porcelain toilets, and stainless plumbing fixtures the problem of having enough water and holding tank capacity has become even bigger. Unfortunately using all the water system features of a modern RV can be limited by the size of the tanks, which can put to waste all those fancy amenities. Luckily, a new solution is available.

Auxiliary Fresh & Grey Water Systems give boondockers and accessory enthusiasts a valuable option to increase tank capacity without RV or vehicle modifications, and drastically improve quality of life during their stay.

Boondockers are consistently raising their expectations for having all the amenities that they are used to at home. Many of these amenities rely on fresh & grey water supply and storage. These can quickly deplete when staying in a location without full hook-ups. RV owners ultimately want to be able to use their amenities at full potential regardless of their location. The new auxiliary fresh and grey water systems available allow them just that.

Top quality grey and freshwater auxiliary systems include high-density polyethylene, UV stabilized tanks, a 12- volt transfer pump and all the connections needed to operate the system.

The Pump

The pump is conveniently connected to the vehicle’s power source via the 7-pin trailer connector. This allows users to effortlessly transfer fresh water into their RV unit. This also allows users to extract grey water for removal at an approved dump station. The big idea behind the new powered-type auxiliary systems is to provide the user an experience free of having to lift any heavy tanks or containers and allowing the transfer to take place even if the auxiliary tank is above the RV tank.

Auxiliary RV water system tanks can easily fit into RV compartments and into truck beds, including around 5th wheel hitches. When not in use, all components are easily removable and stored. There are no modifications or permanent attachments to the RV or vehicle. It’s an easy set up and easy break down. 

Freshwater auxiliary systems allow the user to bring a reserve supply of fresh water to the RV location and transfer the water effortlessly using a powered transfer pump system. A well-engineered freshwater auxiliary system keeps water sanitary, is easy to use and store, and is built to last a lifetime.

A grey water auxiliary system offers the opposite of the freshwater system. It extracts greywater from the RV into the auxiliary tank so it can be transported to an approved dump station. When compared to traditional methods, a grey water auxiliary system transfers the water using a pump. It also doesn’t not rely on gravity to empty the RV grey tank. This can be a great benefit for those who do not want to lift or pull around a wheeled tank. This can be impossible in remote destinations.


In conclusion, auxiliary RV water systems can offer an improved experience to any RV’er who wants all the comforts of home when on the road or far off the beaten path. Nowadays, people create their own adventures in their own spots away from the noise of the busy world. They are looking for freedom that can only be experienced in remote locations, but in ways that they do not have to let go of the amenities that make them comfortable and help them relax. RV’s offer the comforts of refined travel in remote areas, but they do require sufficient power and water to make those comforts a reality.

As with everyday life, water is a key element. The good news is that there are auxiliary RV water systems available to supplement your RV water systems, allowing for amenities to be used at full potential.

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