To determine when to replenish, regulate the thickness and look in the wood shavings. If they've substantially decomposed or if weeds are beginning to break via, it’s the perfect time to increase a completely new layer. You know how some foods consist of sawdust?! Do a quick internet research https://animalbeddingwoodshavings38036.boyblogguide.com/34784739/the-smart-trick-of-top-bedding-wood-shavings-that-no-one-is-discussing