Leftover MMS1 from Animal Doses

I’ve been giving 5 kittens and 1 adult cat MMS1, but they were all sharing the same cup.  Meaning I only mixed 1 drop of MMS in 4 oz of water for all of them.  They only drink a tiny amount from 1.5 ml to 27 drops.  So that’s why I was making up one batch for all of them.  Most of the water is discarded.

I decided to make a dose for each of them with 4 hours’ worth of MMS1 mixed.  I can already see how much water is going to be left over and it pains me.  What do you do with leftover MMS1?  It seems like there are better uses for it than simply to throw it down the drain.  At the rate I’m using it, I’m throwing out more than 2 liters a day.  Jim Humble said 1 liter is okay down the drain.  

What else can I use MMS1 for?