Have you ever been faced with the difficulty of your washer pump not being able to supply enough washer fluid to your windshield during terrible weather? Perhaps you did, once or twice.
Fine, that’s alright. The primary reason for this awkward experience is that your washer fluid needs to be drained. So, in this article, we shall briefly explain how to drain windshield washer fluid?
We need to understand that your car’s windshield washer fluid is very vital to the performance of your car. Windshield washer fluid helps to keep your windshield clean from grime and dirt. This provides you proper visibility to enjoy seamless driving.
Apart from cleaning the windscreen, the washer fluid helps to lubricate the reservoir pump.
When the washer fluid is at an adequate level in the wiper fluid reservoir, it prevents the windshield washer pump from corrosion and leakage.
So, we shall consider how to get rid of windshield washer fluid from its reservoir?
Importance Of Properly Draining Washer Fluid
Properly draining the windshield washer fluid reservoir prevents problems that affect visibility.
Old or contaminated washer fluid can leave streaks on your windshield, making it harder to see, especially in adverse weather conditions. Maintaining a clean reservoir ensures optimal performance of your washer system.
Regularly draining and refilling your washer fluid reservoir allows you to select appropriate fluid for the season. In colder months, use a washer fluid with antifreeze properties. For warmer months, opt for a cleaner solution that removes dirt and grime effectively.
Neglecting this maintenance task can lead to clogging of the washer system’s nozzles. Clogs can result in reduced fluid spray or total system failure.
By ensuring your reservoir is clean and full of the right fluid, you maintain the reliability of your windshield washer system.
Lastly, properly draining the reservoir keeps your car’s components in good condition. Old fluids can corrode the internal parts of the washer system. Regular maintenance extends the life of these components, saving you money on repairs down the line.
When to Replace the Windshield Washer Reservoir?
Like any car part, the windshield washer reservoir can fail ahead of its designated service life. And when it does, you’ll have to replace it to ensure proper functionality.
Here are some of the common reasons that may cause the reservoir to go bad and require replacement:
- Cracks in the reservoir: Caused by frozen washer fluid, engine vibrations, and shocks from driving over rough surfaces.
- Problem with the seals: The seals around the connection point between the reservoir and the hoses to the windshield washer pumps have failed.
How to Drain Windshield Washer Fluid?

Step 1: Open The Hood.
Before draining windshield wiper fluid, how to remove the windshield washer reservoir? The first thing you need to do is open the hood of your car. You then find the handle or latch to release the hood, pull it upwards, and set it aside.
Step 2: Locate The Washer Fluid Reservoir.
The next step of “how to change washer fluid” is to open the front bonnet you find the location of the fluid container.
Usually, it will be located on the left end of the car, below your hood. You can check around the front of the car for anything containing liquid if you still can’t see the tank yet.
Step 3: Find The Washer Fluid Reservoir Cap.
You need to find the position of the lid of the washer reservoir after you locate it. There is always a hose directly into the fluid system attached to the reservoir cap.
Step 4: Unscrew Washer Fluid Cap.
At the top of the liquid container, there is a silver screw; look for it. This screw is connected to a tube leading from the tank to the pump motor compartment. This compartment is linked to the car wash fluid system.
The top of the hose valve helps control the flow of windshield washer fluid from the washer bottle to the windshield washer. You can use a wrench to remove this part.
Step 5: Remove Fluid Reservoir.
Empty remaining in the reservoir is necessary. You can do it through an opening. You can reuse this liquid to save it. It’s essential not to spill another liquid. It will affect the quality of car wash water if mixed.
Step 6: Drain The Reservoir And Reconnect the Hose.
You re-connect the tank hose to the car’s fluid system and reconnect the cap after finding how to drain washer fluid. You will need to replace a bottle seal if you have previously removed it.
Step 7: Refill Washer Fluid Reservoir.
How to replace windshield wiper fluid reservoir? After completing the installation and connecting the tube to the tank, you fill the glass cleaner solution into the container.
You’re better off mixing a mixture of 50% water and 50% concentrated detergent solution and filling the tank with fluid.
Car manufacturers recommend this dosage. If you buy prepackaged glass cleaner, follow the instructions on the product packaging for the best results.
Step 8: Check The System.
You must double-check your washing machine’s entire fluid reservoir to ensure you’ve installed everything properly. You test by turning on the windshield wipers, then starting the car and turning the wipers to the fastest setting.
The windshield wiper system works properly when the wipers are working without spots or streaks in front of the glass.
Step 9: Close Up Hood and Clean Up.
After you check that the whole system is working properly, close your car’s hood. You use a rag to clean the liquid spilled on the car.
Step 10: Get rid of the Drained Washer Fluid.
The glass cleaner you just poured out can be taken to auto waste disposal facilities or auto parts stores for them to handle.
Most old windshield washer fluid is recyclable, so it’s good to take it to an auto parts store for a free recycling treatment.
You can find how to drain windshield wiper fluid differently, but the flushing process is pretty straightforward. You need to locate the container and follow the steps above. You will be successful.
However, if you have any problems during the flushing process, take your car to an auto parts store for them to service it.
Things To Keep In Mind While Draining Windshield Washer Fluid
Here are some precautions listed down that you need to keep in mind before and during draining windshield washer fluid:
- You should wear protective gloves to protect you from any contact with the fluid and protect your hands from any burns.
- Do not forget to turn off the engine before starting and maintain it. Make sure the engine is not hot so that you can avoid burns.
- The technique of locating washer fluid reserves needs so much precaution. Do it very carefully.
- Keep a drain pan ready to get access to the fluid as it drains from the reservoir.
- Dispose of the old washer fluid by following local area regulations and guidelines. Keeping it at home or disposing of it anywhere may cause a lot of trouble for you.
FAQs.
Q: Can windshield washer fluid be poured down the drain?
Are you contemplating where you can drain your used washer fluid? You can dispose of it in the drain. This is simply because it finds its way back to the drain when you use it along the road in daily use.
Q: How do you change washer fluid?
Your windshield wiper fluid is a lifesaver during turbulent weather. If your wiper fluid is long gone, you need to drain out the old fluid and replace it with a new one. Follow the below guides to replace your washer fluid.
- Carefully open the hood and locate the washer fluid reservoir.
- Gently remove the reservoir cap and check the level of the washer fluid in the reservoir. If it’s below average, you might start seeing algae in windshield washer fluid. Add a few drops of regular household disinfectant to clear the algae.
- Depending on your car model, locate the washer fluid hose and drain accordingly.
- After draining the fluid, pour the recommended washer fluid into the reservoir until it reaches the top.
- Replace the reservoir cap and press it down, so it can lock accordingly.
- Finally, close the car’s hood.
Q: What happens when you put windshield washer fluid in a gas tank?
So, you mistakenly ended up adding your washer fluid to the gas tank. Be clear that it is really dangerous and causes damage to the engine and its related compartment.
So, what you have to do is simply drain the tank until it is empty. Afterward, you can replace the gas tank with the required fuel.
Q: How do you clean a windshield washer reservoir?
As time passes by, your windshield washer reservoir can get clogged, filled with dirt and debris. This happens especially when you do not use the recommended washer fluid. Perhaps, you mix your washer fluid by yourself.
The result is that the mixture can congeal, causing the hose to get clogged up. Below are simple ways to dissolve gunk in a windshield washer bottle.
- Open the car’s hood.
- Locate and remove the washer fluid cap.
- Drain the washer fluid in a bucket.
- Use distilled water and flush accordingly.
- After flushing the bottle, refill with recommended washer fluid according to your manufacturer’s manual.
Q: Does windshield wiper fluid kill grass?
Due to the composition of the windshield washer fluid, the fluid is quite toxic. As a result, it can harm plant growth and kill grass growing on the lawn. It is advisable, therefore, that you drain the old washer fluid appropriately.
Q: Is it OK to pour perfume down the drain?
Like every other harmful chemical substance, perfume possesses a negative effect on the environment.
As such, you shouldn’t pour the perfume into the drain, as it can contaminate the drain. Instead of that, you should contact the local waste removal agency to properly dispose of your car’s perfume.
Q: Can you put vinegar in your windshield wiper fluid?
Vinegar is very compatible with your car’s windshield since it can be used as a window wash. However, you must take extra attention to use white vinegar, as any other color can end up leaving residue in your washer reservoir.
You can add mixed white vinegar with distilled water to your windshield washer fluid reservoir. Following these processes will ensure your washer fluid reservoir is clean.
However, you should not be substituting washer fluid with tap water, as it can cause corrosion and lead to damage to the pump and the windshield when it gets to freezing point.
Final Words
Your car’s washer fluid is essential to ensure you enjoy clear visibility while driving on rainy days.
You need to drain and replace this fluid from time to time to avoid freezing inside the reservoir. It is also important to use recommended washer fluid as prescribed in your manufacturer’s manual.
Although, draining your car’s windshield washer fluid could be a bit technical. That is why we have carefully highlighted the guide above. At this juncture, you must have learned how to drain windshield washer fluid.