plopping doesnt work for me either, in germany or in australia, i just wrap my hair up to stop it dripping, but generaly plopping is a massive no no for me.
mmmm somthing else that i do: a vinegar rinse. i do this to remove hard water build up, again somthing that i have in germany but not australia.
i add lots of herbs to it, and make like a tea, let it sit till cold then i strain it and add a *splash* of ACV and use it as a final rinse. so i dont rinse it out i just leave it in to dry. the smell goes away as it dries.
also have you tried to seal? sometimes that helps with fizz as well.