Cut a small piece and knead it to mix the hardening agents. Be sure to first rough up the area to be puttied by using sandpaper. To clean the pump when the cord is threaded through, I allow a few extra inches of cord length inside the container. This allows you to lift the pump out of the container, cord still attached. Just take your design apart and carefully dump the backfill and service the pump in the sink.
Fountains are about sharing and exchanging ideas.
Get your shoes wet another way, by building a table top fountain. Only you will know the secret of the atomizer fogger. You will be surprised how effective it is despite its small size. No one wants to make a mistake. Especially not an expensive mistake.