I installed the main bracket for the bath rather low in the cage, and leave it there. Then at least 2 or 3 times a week I simply partially fill the tub with a bit of tepid water from the tap and anchor it into their cage by dropping the key shaped tub base into the slot in the bracket, and then twisting the tub to lock it in place. The bath is very stable. Within minutes both birds head toward it. One of them is a bit pushy and doesn't let the other get in first, but I guess they work out their own politics. They perch on the edge, walk and flutter in the tub, and even hang upside down from the perch above to put their whole face into the water. In any case, both seem to enjoy it but particularly the pushy one. Since the water gets dirty quickly, I don't leave it in for more than a couple of hours. We have a tall Hagen Vision M02 cage and there's plenty of room for the tub.