Liquid Fence is one of the repellents that does work. If you can find it in smaller quantities at a price you are willing to pay, I would say go for it. The other is a blood based pelletized repellent of which I don't know that name. If you would be interested in Liquid Fence from the standpoint of quantity and cost, I could check with our game damage specialist who has done the background work and trials with it since it will be in the same category. The specialist and I discussed this about 2 months ago and he told me the pelletized repellent would likely work best in a garden type situation.
Otherwise, use the bath water!!!!!
RB