
It’s a backyard chicken keeper’s worst nightmare.
That barnyard smell.
For the first month, it was totally fine. Then one hot, muggy day, after a heavy downpour, it arrived. I had to be standing literally at or in the coop, but the smell was undeniable.
Of course, I freaked out. I worried about it getting worse, and possibly upsetting my neighbors. Trying to be helpful, Matt took a walk by the coop and said he couldn’t smell a thing.
Could it be possible I imagined the whole thing?
A couple days later, after another rain, Matt finally admitted he could smell a slight barnyard smell.
I quickly figured out that the smell went away when the sand in the run dried out. But when it rained …
As with any other dilemma, I consulted the Google Machine.
I learned about proper drainage, and using pelletized lime to combat smells. Then I discovered Sweet PDZ.
Marketed as a horse stall deodorizer, I found Sweet PDZ also is safe to use in chicken coops. It works by absorbing and neutralizing ammonia in the chicken waste.
Apparently, other people had the same idea because I had trouble finding it in stock. We finally tracked down a bag at a Tractor Supply Co. about an hour’s drive away.
By the time we returned, I was anxious to see if this stuff works.
I had already gotten into a routine of scooping out the chicken poop on a daily basis. So I started with a light cleanup, including of the bazillion feathers the girls shed each week.
The PDZ directions said to use 6 cups on the first application, then 1-3 cups for maintenance. So I used a coffee mug to spread six cups of the powder on top of the freshly cleaned coop sand. Next, I used a metal rake to mix it into the sand.
By the next time I went out for a visit, I could tell a difference.
But the big test was with the next rainstorm, which came a couple days later. It was a huge storm, that splashed lots of water into the coop sand.
And when I went out to take a big sniff?
It smelled like heaven.


Looks like they actually market a product for coops:
Sweet PDZ Coop Refresher.
“The particle size of our Coop Refresher granules makes it effective and very easy to apply throughout coops and runs. Sweet PDZ Coop Refresher is “organic” listed through OMRI [Organic Materials Review Institute], and it serves as a safe and beneficial grit as it is an excellent source of calcium. And when you’ve disposed of it with your bedding and waste, it also enhances nutrient performance in compost and gardens.”
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