You have several questions here I will try to answer, both stated and unstated.
I dont know how to put this gracefully so I'll just say it..
First of all, you can bath your Pyr weakly as long as you use a non-drying dog shampoo. However if your dog has a correct coat, this should not be necessary. They should not require bathing any more often than your nose will tollerate...lo l I have dogs that are indoors, that have been bathed only once per year and only then because I felt guilty. If you have a correct coat on your dog then that is all that should be required unless you are showing or you are just inclined to get real wet frequently.... .The coat should be soft but not silky, course but not wirey. In between. Sounds like you have a course coated dog from what you are saying.
Drooling - Pyrs are not big droolers normally. Two things will cause this. Incorrect temperament, ie: shyness, or incorrect head. Obviously there is nothing to do about that at this point but just so you will know for the future.
A Pyr that has a correct head... the standard says basically that when you look at your dog from profile, the top lip should just slightly overlap the bottom lip (slightly), and the bottom lip should be tight (note the picture below)
Hope this helps, get a drool rag and join the rest of us..lol
Jackie