Thanks for all your advice on my previous thread after adopting 3 cats 19 days ago.
Today's question is on their litter tray. They have 2 big trays, one covered and one uncovered. They tend to favour the uncovered one but do use both. The covered one is bigger. I scoop poops immediately and I sprinkle a deodorising powder on their litter after they use their trays. I last cleaned them out in full a week ago and although the litter is quite yellow in one tray it doesn't smell and they are still using it and favouring it.
Should I empty and refill in full weekly regardless or just when it looks like it needs it. The litter trays are big and ive gone through a full 15L bag to ensure the trays have plenty litter in them. They used Sanicat Diamond litter in their Laayoune home so I bought more of that but it's expensive!