I don't save it or pour it down the house drain. Was told it is not good for the plumbing.
I throw it outside

I soak mine in batches so I use a bucket that gets dumped outside. Then I soak again. There are a few I have done under the faucet a tassel comes to mind, however they were so small and it took a long time to dissolve.

Mine goes into the drain and pumped into septic tank.I use a product called septo vac and i put it in the toilet once a week.I had my tank pumped @ end of November and he said ours was one of the best (cleanest)he pumps and he knew we used this cheap stuff .It is bought here at Giant Tiger store for 8 pkgs for four dollars hugs