Potassium-Permanganate,does that not form part of walters potion Billy, if so then they have it in their drinkers once per week post race but have not tried it in bath water.I think i will have to vaccinate against it to try to make sure they dont get it next year thats providing i can buy the duel para-pox vaccine if not will get the one you brush on top of leg (after pulling feathers) but will also try p/p in bathwater. ps, will it also make them flee quicker lol.thanks for the input Billy99