Why Will My Graco Paint Sprayer Spray Water But Not Paint?

Graco is a well-known manufacturer of paint sprayers that are widely used by professionals and DIY enthusiasts. These sprayers are designed to deliver a smooth and even coat of paint on various surfaces, making painting tasks easier and faster. However, there are times when you may encounter issues with your Graco paint sprayer, such as it spraying water but not paint. This can be frustrating, especially if you are in the middle of a painting project. In this article, we will explore some of the reasons why your Graco paint sprayer may be spraying water but not paint, and what you can do to fix it.

The Paint is Too Thick

One of the most common reasons why your Graco paint sprayer may be spraying water but not paint is that the paint is too thick. Paint that is too thick will not flow through the nozzle of the sprayer, resulting in a weak spray or no spray at all. This can be particularly problematic if you are using latex paint, which tends to be thicker than other types of paint.

To fix this issue, you will need to thin out your paint. The amount of thinner you need will depend on the type of paint you are using and the recommended thinning ratio. You can find this information on the label of the paint can or by consulting the manufacturer’s instructions. Once you have added the appropriate amount of thinner to your paint, mix it thoroughly and test it in your sprayer. You should notice an improvement in the spray pattern and consistency.

The Spray Tip is Worn Out

Another reason why your Graco paint sprayer may be spraying water but not paint is that the spray tip is worn out. Over time, the spray tip can become worn or clogged, preventing paint from flowing through it properly. This can result in a weak spray or no spray at all.

To fix this issue, you will need to replace the spray tip. Graco offers a wide range of spray tips that are designed to work with their paint sprayers. You will need to choose a spray tip that is compatible with your sprayer and the type of paint you are using. Once you have replaced the spray tip, test the sprayer to ensure that it is working properly.

The Pump is Not Primed

If your Graco paint sprayer is spraying water but not paint, it is possible that the pump is not primed. Priming is the process of getting the paint from the container to the sprayer, and it is essential for proper operation. If the pump is not primed, it will not be able to draw paint from the container and spray it through the nozzle.

To prime your Graco paint sprayer, follow these steps:

Fill the paint container with paint
Turn the sprayer on and set the pressure to the lowest setting

Hold the sprayer over a waste container and engage the trigger
Allow the sprayer to run until paint flows out of the nozzle
Once paint is flowing, adjust the pressure to the desired setting

The Filter is Clogged

Another reason why your Graco paint sprayer may be spraying water but not paint is that the filter is clogged. The filter is designed to prevent debris and other contaminants from entering the sprayer and clogging the nozzle. However, over time, the filter can become clogged with paint particles and other debris, reducing the flow of paint through the sprayer.

To fix this issue, you will need to clean or replace the filter. Graco offers a range of filters that are designed to work with their paint sprayers. You will need to choose a filter that is compatible with your sprayer and the type of paint you are using. Once you have cleaned or replaced the filter, test the sprayer to ensure that it is working properly.

In conclusion, there are several reasons why your Graco paint sprayer may be spraying water but not paint. By identifying the root cause of the problem and taking the appropriate steps to fix it, you can get your sprayer back up and running in no time. Whether you need to thin out your paint, replace a worn spray tip, prime the pump, or clean the filter, Graco has the solutions you need to get the job done right.

Frequently Asked Questions

Why is my Graco paint sprayer spraying water instead of paint?

There are a few possible reasons for this issue. It could be that the paint is too thick or has dried out in the sprayer, the sprayer nozzle may be clogged, or the pressure setting may not be adjusted properly.

How do I fix my Graco paint sprayer if it’s only spraying water?

First, check the viscosity of the paint and thin it out if necessary. Then, try cleaning the nozzle and filter to ensure they are not clogged. If the issue persists, adjust the pressure setting and test the sprayer again.

Can I use water to clean my Graco paint sprayer after using it?

Yes, you can use water to clean your Graco paint sprayer after using it. However, it is recommended to use a cleaning solution specifically designed for paint sprayers to ensure a thorough cleaning and prevent any damage to the sprayer.

What can I do to prevent my Graco paint sprayer from spraying water instead of paint in the future?

To prevent this issue from happening again, make sure to properly clean your sprayer after each use and store it in a dry, cool place. Also, always check the viscosity of the paint and adjust the pressure setting accordingly before using the sprayer.