Birchmeier Sprayer Maintenance Part 1

Birchmeier Sprayer Maintenance Part 1

Posted by Andrew Greess on Feb 28, 2022

Birchmeier backpack sprayers make up some of the best manual equipment on the market, and they are designed for years of reliable operation with proper maintenance. Maintenance is actually one of the most important things you should do with your Birchmeier sprayer.

Below are a number of blog posts discussing the importance of maintaining your Birchmeier sprayer.

Birchmeier Backpack Sprayers - A Little Care Goes a Long Way

Birchmeier Backpacks are, in my opinion, the best manual backpack sprayers made. They are a great tool for your pest control or landscape business. With a little care, your Birchmeier Backpack Sprayer will last many years.

Unfortunately, we see many Birchmeiers that are not properly cared for.

Here are my suggestions for regular Birchmeier Backpack Sprayer (daily or weekly maintenance). NOTE: aside from #3 Lubrication, most of these suggestions apply to most backpacks and hand sprayers.

1. Filters. Clean both Birchmeier filters. Birchmeier Backpacks have one filter in the lid and one in spray valve handle. Check and clean both filters.

2. Pressure. Release the pressure. Never store your Birchmeier Backpack sprayer under pressure. Storing your backpack under pressure is a bad idea. On a hot vehicle, the pressure will increase. Under freezing conditions, storing the backpack under pressure increases the risk of serious freeze damage. Releasing the pressure after each stop, or at the end of the day, will increase the life of soft parts like orings, gaskets, hose, etc.

3. Lubrication. One of the things that sets Birchmeier Backpacks away from the competition is the grease reservoir. Be sure to regularly grease your backpack. We suggest the use of Birchmeier grease.

4. Clean it out. Prevent chemical build up by triple rinsing the tank, then pumping clean water through the entire system.

Click here to see the whole list of maintenance suggestions.

Birchmeier Backpack Annual Maintenance Suggestions

Birchmeier Backpack Sprayers are top quality professional weed and pest control spray equipment. But even the best of the best require proper care and maintenance to ensure long-term usage. Cleaning of your backpack sprayer of course is top of the list in proper care. At Qspray, we further recommend that 4 parts be replaced annually. First we suggest the check valve, all of the o-rings on the system, rebuild the spray valve and adding new Birchmeier grease in the grease piston to ensure your system is well lubed. These are important parts. To prolong the life of your pest control or lawn care sprayer, we advocate this as best practice to our clients. All four replacement kits can be found at

Clean Out Your Birchmeier Backpack for Longer Life, Less Downtime

Birchmeier backpacks are great tools for pest & weed control professionals. Like most things they require a little care. One of the simplest things you can do to reduce problems is to clean out your Birchmeier Backpack sprayer.

When to Replace Your Birchmeier Check Valve

If you're having trouble pumping up your Birchmeier backpack, it could be that the check valve. The check valve is this white spring assembly under the pump cylinder. If that gets full of debris, it will not work properly. It is one part that can be replaced frequently and all pest control companies using these backpacks should keep extra check valves in stock.

You can buy it from QSpray at

No Pressure? Birchmeier Check Valve

We know how frustrating it can be when you are on a job and suddenly your Birchmeier Backpack sprayer doesn't seem to be building up any pressure. The valuable pressure that builds inside and then forces the spray out of the wand. Without it there ceases to be any spray coming out to treat the weeds or spray the pests. This is a big deal. Thankfully we have the knowledge and resources to help you out of this predicament.

Most often by inspecting the Check Valve and giving it a thorough cleaning or replacing it will fix the problem. Pulling off the air chamber will reveal the small white check valve that you can pry off with a screwdriver. Rinsing clean the valve to remove any debris buildup can help, we recommend replacing entirely once a year for heavy users.

Having Trouble Building Pressure? Look at the Check Valve

The Birchmeier Backpack Sprayer is likely a key component of your business. Maintaining parts so it works properly and lasts a long time is good business practice. There are a handful of key parts we recommend replacing/cleaning once a year to keep proper working condition on your sprayer. The Check Valve is one of those parts.

The Check Valve allows you to build pressure in the sprayer, as soon as debris gets into the valve, you may find that pumping and building pressure is difficult. Simply pry it out with a screwdriver for leverage and replace. We also recommend having a back-up check valve in shop in case of emergencies, to prevent work stoppage in what could be a few minute fix.

Visit and order replacements and back-up check valves for your Birchmeier Backpack sprayers today.

Repair Tips for Birchmeier Backpack Sprayers

You spend a lot of money for your Birchmeier pest control sprayer. You also spend a lot of time and effort getting your customers. What you don't want is downtime to prevent you from servicing your customer. It is important to keep your Birchmeier running smoothly. At Qspray, we recommend keeping a few important repair parts on hand so that if you do have a problem, you can service it quickly and efficiently. Watch our full video for all the parts and repair tips you need to keep your Birchmeier working properly. 

We also carry a wide range of sprayer replacement parts which make it easy to conduct regular maintenance on your favorite Birchmeier backpack sprayers. These Birchmeier backpack sprayer parts allow you to save money and avoid faulty pest control equipment. The longer your equipment lasts, and the more productive your equipment is when it is in good shape, the lower your costs and the higher your profits.