Filling a trailer water tank correctly is paramount for safe and comfortable travel, ensuring a reliable supply of potable water for drinking, cooking, and sanitation. This involves understanding your trailer’s plumbing system, using the right connections, and following proper sanitation procedures to avoid contamination.
Understanding Your Trailer’s Water System
The heart of your trailer’s onboard water system is the fresh water tank. Knowing its location, capacity, and access points is crucial for efficient filling. Most trailers have an external water inlet, typically located on the side of the trailer, near the city water hookup. This inlet connects directly to your tank. Some models may also have a gravity-fill port, often located behind a small door or hatch.
Identifying the Inlet Types
- City Water Inlet: This connection bypasses the tank and directly supplies water to your faucets and appliances when hooked up to an external water source like at a campground. Do not fill your tank using this inlet unless your trailer’s manual specifically states it can be used for that purpose.
- Gravity-Fill Port: This is a direct opening to your tank, usually covered with a screw-on cap. It’s the most common way to fill your tank.
- Dedicated Tank Fill Inlet: Some trailers have a clearly labeled inlet specifically designed for filling the fresh water tank. This often incorporates a check valve to prevent backflow.
Determining Tank Capacity
Your trailer’s manual will specify the capacity of your fresh water tank. Knowing this allows you to accurately gauge how much water you’re adding and prevent overfilling. Overfilling can lead to leaks and damage to the tank and surrounding components.
The Filling Process: Step-by-Step
With a basic understanding of your system, you can safely and effectively fill your trailer’s water tank. Here’s a detailed guide:
- Gather Your Supplies: You’ll need a potable water hose (specifically designed for drinking water), a hose filter (recommended for improved water quality), and potentially a funnel (for gravity-fill ports).
- Sanitize the Hose and Connections: Before connecting anything, flush the hose with water for a few minutes to remove any debris or contaminants. Consider using a hose sanitizer if the hose has been stored for a long time.
- Connect the Hose to the Water Source: Ensure the water source is clean and reliable. Turn on the water to flush the hose again, removing any potential contaminants in the public water line.
- Connect the Hose to the Trailer’s Inlet: Securely connect the hose to the appropriate inlet on your trailer (gravity-fill or dedicated tank fill). Double-check the connection to prevent leaks.
- Begin Filling the Tank: Slowly turn on the water supply. Monitor the tank’s fill level. Many trailers have an overflow tube that will begin to leak when the tank is full. Listen for a change in sound as the tank fills.
- Monitor the Filling Process: Regularly check for leaks around the connections and the tank itself. If you notice any leaks, immediately turn off the water and tighten the connections.
- Stop Filling When Full: Once the tank is full, turn off the water source before disconnecting the hose. This prevents pressure from the tank forcing water out.
- Disconnect and Store: Disconnect the hose from both the water source and the trailer. Drain the hose completely and store it in a clean, dry location.
Sanitation and Maintenance
Maintaining a clean water system is vital for your health and safety.
Sanitizing Your Tank
Regularly sanitizing your fresh water tank is essential to prevent the growth of bacteria and algae. The generally accepted method involves using a diluted bleach solution. Consult your trailer’s manual for specific instructions, but a common ratio is 1/4 cup of household bleach per 15 gallons of tank capacity. After sanitizing, thoroughly flush the system with fresh water until the bleach smell is gone.
Using a Water Filter
A water filter can significantly improve the taste and quality of your water. Inline hose filters are readily available and easily connect between the water source and your trailer. They remove sediment, chlorine, and other impurities, providing cleaner, safer drinking water. Consider a more sophisticated whole-house filter system for even better water quality.
Frequently Asked Questions (FAQs)
Here are some common questions about filling and maintaining trailer water tanks:
FAQ 1: What kind of hose should I use to fill my trailer’s water tank?
You must use a potable water hose. These hoses are specifically designed for drinking water and are made from materials that won’t leach harmful chemicals into the water supply. Never use a garden hose as it can contaminate your water.
FAQ 2: How often should I sanitize my fresh water tank?
It’s recommended to sanitize your tank at least twice a year, especially before storing your trailer for extended periods. Also sanitize after using water from questionable sources.
FAQ 3: What happens if I overfill my water tank?
Overfilling can cause leaks and damage to the tank itself or to the plumbing connections. Many trailers have an overflow tube, but relying solely on this can still lead to problems. Always monitor the filling process.
FAQ 4: Can I drink the water from my trailer’s fresh water tank?
The water is safe to drink if the tank is properly sanitized and the water source is clean. However, it’s always recommended to use a water filter for improved taste and safety.
FAQ 5: What should I do if my water smells bad?
A bad smell indicates contamination. Drain the tank completely, sanitize it thoroughly, and refill with fresh, clean water. If the smell persists, consult a professional RV technician.
FAQ 6: How do I prevent my water tank from freezing in cold weather?
In cold climates, insulate the tank or use a tank heater to prevent freezing. You can also add RV antifreeze to the tank (following the manufacturer’s instructions), but this will render the water undrinkable until the system is thoroughly flushed.
FAQ 7: Can I use well water to fill my trailer’s water tank?
Yes, if the well water is tested and known to be safe. Well water can sometimes contain contaminants, so it’s essential to ensure it meets drinking water standards before using it in your tank.
FAQ 8: Where can I find the water tank drain valve on my trailer?
The location of the drain valve varies depending on the trailer model. Consult your owner’s manual for specific instructions. It’s typically located near the tank itself, often under the trailer.
FAQ 9: Is it okay to leave water in my tank when storing my trailer?
It’s generally not recommended to leave water in your tank when storing your trailer, especially in cold climates. Drain the tank completely to prevent freezing and potential damage. Consider adding RV antifreeze to the plumbing system as well.
FAQ 10: My water pump keeps running even when no water is being used. What could be the problem?
This usually indicates a leak in the water system or a faulty water pump. Check all plumbing connections for leaks and inspect the pump for any signs of damage.
FAQ 11: What is the difference between a fresh water tank and a gray water tank?
The fresh water tank holds potable water for drinking, cooking, and sanitation. The gray water tank holds wastewater from sinks, showers, and washing machines. Never mix the two.
FAQ 12: How can I tell if my fresh water tank is full if I don’t have a gauge?
Many trailers have an overflow tube that will begin to leak when the tank is full. You can also listen for a change in sound as the tank fills, or carefully monitor the amount of water you’re adding based on the tank’s capacity.