I Have No Filter – Part 1

You’re reading the title and thinking OMG! What is she gonna say now? It’s not what you think. Although, on the highway between my brain and mouth, the speed is around 120mph. My boss did say to me recently, “I would hate to be in your head.”


My topic this time – How do you care for your pesticide sprayers?

I used to be one of THOSE technicians who took out all of the filters in my handheld sprayer. I was frequently irritated when the nozzle got clogged. I was frustrated when the spray lever was sticking. Gggrrrrr! came out of my mouth when the pressure adjustment screw wouldn’t turn. I took out that damn clogged screen, and left it out.


I was new at applying residual sprays, and didn’t know much about SC, WP, G, CS, or any other formulation lettering. I read labels and SDSs. I mixed according to pest and location information. I just knew I was doing my best to follow all the rules.

I didn’t realize that taking out those filters was causing damage to my sprayer. It quickly put the application rate out of spec. It caused the repair rate, and cost of repairs, to increase. Yes, I USED to be THAT technician.


I will admit, I hate cleaning and doing maintenance on my sprayer. I want it easy, like everyone. When I realized that I was replacing parts too frequently, I analyzed my processes.

I was leaving pesticide residue caked in the bottom of the spray tank, and possibly mixing incompatible chemicals. I was only using the fan tip setting on the nozzle. (It’s my favorite) More area, less time is not always the correct application method. I had the trigger set screw wide open. The speed at which I was applying probably wasn’t right. I wasn’t keeping proper pressure in the tank. Application was a full stream down to a dribble.


All of these behaviors were making the parts of that precious sprayer wear out. I compared costs of parts to repair the handle, nozzle, and pump -vs- just keeping the filters in place. THERE IS NO COMPARISON. All those replacement parts can cost more than $100 combined. The filters – less than $6, and can last a very long time, with cleaning.

I think I will just suck it up and do my cleaning and maintenance…. and keep the filters in place.

Published by Melisa Arnold, A.C.E.

My career in pest management began while working in a flour mill as the “in-house” technician in 2008. I am certified in multiple states. I began working full time as a fumigation-pest control tech in 2010. I achieved my Associate Certified Entomologist (ACE) in 2018. I have a Master Tech certification from Kansas State University/Kansas Pest Control Association. I hold a Bat Management certification from NWCOA. Every day, I realize how much I DON’T KNOW. My goal for this blog is to share my every day experiences from the field and to make us all think outside the box for solutions to make pest control make sense.

One thought on “I Have No Filter – Part 1

  1. You bring up a good fact. Doing even the seemingly smallest things right can save frustration, time and money. Thank you for adding to my day.

    Liked by 1 person

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: