I don't think she likes them. I have her book, and it is well worth the read. I'm not on the
boat so cannot pull my book out to look, sorry.
I used the blue tankette tablets, I kept the tablet in the plastic wrap and pierced holes in it so it would last longer. Sailing vessel Como No, my friends, used non clorine pool tablets. They put them in their AC intake strainer as well, said it keeps the strainer and hoses free from algea growth.