I use sophisticat pink my 2 litter trays are in the bathroom i scoop out dump and sieve litter out and chuck it down the loo! ive been doing this for 2 years with no probs.every 5 days i empy out tray into carry bag and pit it in the black bin.The doogy dump gets bagged and black binned,when we have pups we usually have to make the odd trip to the tip as bin gets full quickly!
They dont like you putting anything in your green bin with is waste from a carnivourous animal such as cats and dogs.