Truckmount Chemical Injection Tank Overflowing

Is your truckmount chemical injection tank overflowing? Don't worry; we've got your back! We're diving deep into this issue to help you understand why it happens and how to fix it.

After years of experience with truckmounts, we've gathered some invaluable insights that we can't wait to share with you.

So, for some expert tips and tricks, as well as some preventative measures, read on.

What this article covers:

What to Do When Your Truckmount Chemical Injection Tank Is Overflowing: 4 Must-Try Steps

Before you start panicking, let's get one thing straight: this is a fixable issue. So, roll up your sleeves, and let's get to work.

Step 1: Check For Air Leaks

The first thing you should do is check the system for air leaks. An air leak can cause the chemical tank to overflow. We found that sealing any visible leaks can solve the issue almost instantly.

What To Do:

We recommend using a soapy water solution to identify leaks. Spray the solution around the hose connections and valves. If you see bubbles forming, you've got a leak.

How To Fix It:

Turn off the system and disconnect the leaking part. Apply Teflon tape or a suitable sealant on the threads and reconnect. Test again to make sure the leak is sealed.

overflow issue with truckmount chemical injection tank

Step 2: Inspect The Pump

Sometimes, the pump might need to be rebuilt. This usually happens when the pump is old or has been used extensively. After putting it to the test, we discovered that a rebuilt pump can significantly improve the system's efficiency.

What To Do:

We suggest you first check for visible signs of wear and tear. Listen for unusual noises and observe if the pump is vibrating excessively.

How To Fix It:

If the pump is old or shows signs of wear, it might need to be rebuilt or replaced. Rebuilding kits are available, and the process can often be done without professional help. However, consulting a technician is always a good idea.

Step 3: Replace Defective Valves

Suppose you find that the chemical prime/on-off valve or chemical metering valve is defective. In that case, it's time for a replacement. These valves play a crucial role in regulating the flow of chemicals, so make sure they're in top condition.

What To Do:

Inspect the chemical prime/on-off valve and the chemical metering valve. Look for signs of corrosion or damage.

How To Fix It:

If you find that either valve is defective, replace it immediately. Always opt for high-quality valves to ensure longevity and better performance.

Step 4: Measure The Pump Volume

A defective cylinder in the solution pump can also cause the tank to overflow. Measure the pump volume to ensure it's functioning correctly.

What To Do:

Use a flow meter to measure the pump's volume. Compare this with the manufacturer's specifications.

How To Fix It:

If the pump volume is less than expected, consult the manufacturer's guidelines for troubleshooting steps. You may need to replace the cylinder or other internal components.

chemical injection tank on truckmount overflowing problem

How to Prevent the Chemical Injection Tank From Overflowing

Before you find yourself knee-deep in troubleshooting, why not take steps to prevent the issue from happening in the first place? 

In this section, we'll walk you through some foolproof strategies to keep your chemical injection tank from overflowing, saving you time and stress.

Step 1: Regular Maintenance Checks

In our experience, regular checks can help you spot issues before they escalate into more significant problems. Set a schedule for routine inspections of hoses, valves, and pumps. Make it a part of your weekly or monthly maintenance routine and ensure you keep a log book of all the maintenance you’ve done.

Step 2: Install A Pressure Relief Valve

A pressure relief valve can automatically release excess pressure, preventing an overflow. Consult your manufacturer's guidelines to find a compatible pressure relief valve for your system.

Step 3: Monitor Chemical Levels

Keeping an eye on chemical levels can help you avoid overfilling, a common cause of overflow. Always check the chemical levels before starting the system and periodically during operation. Stay within the maximum fill line.

Step 4: Use Quality Chemicals

Low-quality chemicals can cause residue buildup, leading to blockages and overflows. Always opt for high-quality, professional carpet cleaning chemicals for your system. Check for any compatibility issues with your specific truckmount system.

truck-mounted chemical injection tank overflow

Step 5: Train Your Team

Human error is a common cause of system malfunctions. Ensure that everyone who operates the system is well-trained and understands the importance of each component, including how to prevent and troubleshoot overflows.

Step 6: Keep Spare Parts Handy

Having spare parts like valves and hoses can help you make quick replacements and prevent downtime. Keep a small inventory of essential spare parts based on the most common issues you've encountered or read about.


We hope this guide helps you tackle the issue of your truckmount chemical injection tank overflowing. Simply follow the steps we’ve given, and you’ll have the issue fixed in no time.

And remember, prevention is better than cure. Always ensure that you’re doing proper maintenance, using quality chemicals and that your team is properly trained.

At Truckmount Forums, we take pride in providing quality professional carpet cleaning equipment for sale that is not only safe but top of the line. So, if you're facing any issues, you know you're in good hands with us.

If you want to learn more, why not check out these articles below:

Featured collection

View all
Groutmaster Tile and Grout Cleaner Prespray
Rated 4.8 out of 5 stars
654 Reviews
$ 63.00
Black Label Sweet Breeze™ Prespray
Rated 4.9 out of 5 stars
317 Reviews
Regular price $ 55.00 Sale pricefrom $ 53.00 Save $ 2.00
USOR UNCHAINED (Urine Stain & Odor Remover) With EcoCide
Rated 4.9 out of 5 stars
557 Reviews
Regular price $ 39.59 Sale pricefrom $ 36.50 Save $ 3.09
Ultimate All Fiber Rinse
Rated 4.9 out of 5 stars
91 Reviews
Regular price $ 38.97 Sale price$ 34.00 Save $ 4.97