What about using pea gravel or if I go DLM can I use dead leaves too?
I would not add any more 'stone matter' to your run.
Dead leaves can be
part of run bedding, best to have a mix of stuff, too many leaves can create a mass of nasty anaerobic slime.
The terms 'deep litter' and 'deep bedding' are often misunderstood and misapplied.
I've always liked this explanation:
https://www.backyardchickens.com/th...-method-with-this-coop.1075545/#post-16440037
What kind of bedding you use may depend on how you manage the manure.
This is about cleaning, but covers my big picture
-I use poop boards under roosts with thin(<1/2") layer of sand/PDZ mix, sifted daily(takes 5-10mins) into bucket going to friends compost.
-Scrape big or wet poops off roost and ramps as needed.
-Pine shavings on coop floor, add some occasionally, totally changed out once or twice a year, old shavings added to run.
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My runs have semi-deep litter(cold composting), never clean anything out, just add smaller dry materials on occasion, add larger wood chippings as needed.
Aged ramial wood chippings are best IMO.
-Nests are bedded with straw, add some occasionally, change out if needed(broken egg).
There is no odor, unless a fresh cecal has been dropped and when I open the bucket to add more poop.
That's how I keep it 'clean', have not found any reason to clean 'deeper' in 7 years.
I’m in Midcoast Maine near Bath.
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