grey water tank for rv

grey water tank for rv


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grey water tank for rv

Choosing the right grey water tank for your RV is crucial for comfortable and responsible camping. This guide delves into everything you need to know, from understanding the basics to selecting the perfect tank for your needs. We'll also address common questions and concerns RVers have about grey water management.

What is a Grey Water Tank in an RV?

A grey water tank in an RV collects wastewater from sinks, showers, and the laundry (if your RV has one). Unlike black water (from toilets), grey water is generally less contaminated, but it still needs proper management to prevent environmental damage and unpleasant odors. It's crucial to understand that "grey water" does not include toilet waste.

What are the Different Types of RV Grey Water Tanks?

RV grey water tanks are typically made of polyethylene plastic, known for its durability and resistance to corrosion. You'll find them in various sizes and configurations:

  • Built-in Tanks: These are integrated into the RV's chassis during manufacturing. They are usually the most robust and reliable option but offer less flexibility in terms of size and placement.

  • Under-mounted Tanks: These tanks are placed underneath the RV, often requiring additional support structures. They provide a good balance of capacity and accessibility.

  • External Tanks: These tanks are completely separate from the RV and are connected via hoses. They offer flexibility in terms of placement and capacity, but they may require more maintenance and are more susceptible to damage.

How Big of a Grey Water Tank Do I Need?

The size of your grey water tank depends on your RV's size, your camping style, and the number of people using the RV. Larger RVs and those used for extended trips naturally require larger tanks. Consider how often you anticipate emptying your tank and the potential inconvenience of frequent dumping. A good rule of thumb is to have enough capacity to comfortably last a few days without needing to empty the tank. Larger tanks generally offer more convenience but at the cost of extra weight and space.

How Do I Choose the Right Size Grey Water Tank for My RV?

Choosing the right size involves considering several factors:

  • Your RV's Size: Larger RVs typically require larger tanks to accommodate increased water usage.

  • Your Camping Style: Frequent campers or those on extended trips might need a larger capacity than those who only camp occasionally.

  • Number of Occupants: More people translate to more water usage, demanding a larger tank.

  • Available Space: Check the available space under your RV or in designated areas for mounting a tank.

  • Weight Capacity: Consider your RV's weight limits and choose a tank that stays within these constraints.

How Often Should I Empty My RV Grey Water Tank?

The frequency of emptying your grey water tank depends on usage and tank capacity. It's best to empty it before it becomes completely full to prevent potential spills or leaks. Many RVers aim to empty their tanks every 2-3 days, but this will vary based on their habits. Avoid letting the tank sit full for extended periods, especially in hot weather, as this can lead to unpleasant odors and bacterial growth.

What are the Benefits of Having a Large Grey Water Tank?

A larger grey water tank offers several advantages:

  • Less Frequent Emptying: You won't need to empty the tank as often, saving you time and effort.
  • Greater Convenience: This is particularly helpful for extended camping trips or if you're in a location with limited dump station access.
  • Improved Comfort: You won't need to worry about running out of grey water capacity during your stay.

What are the Drawbacks of Having a Large Grey Water Tank?

Larger tanks also come with some downsides:

  • Increased Weight: This can impact your RV's fuel economy and handling.
  • Higher Cost: Larger tanks are generally more expensive to purchase and install.
  • Space Constraints: They might take up valuable space under your RV.

Can I Use My RV Grey Water for Watering Plants?

While tempting, using untreated RV grey water for watering plants is generally discouraged. Grey water contains soaps, detergents, and other chemicals that can harm plants and potentially contaminate the soil. If you're interested in using grey water for irrigation, consider using a grey water recycling system designed for this purpose, ensuring proper filtration and treatment. Always check local regulations before using grey water for irrigation.

This comprehensive guide should help you navigate the world of RV grey water tanks. Remember to always prioritize safe and responsible disposal of grey water to protect the environment. Choosing the right tank size is a crucial step in ensuring a comfortable and enjoyable RV experience.