I'm the same, need to hose my shoes off. The Crocs don't fit me right, as my feet are narrow, but I got some Croc look-alikes made by Skechers years ago that fit me nicely and have been just wonderful, have a fuzzy sock liner and I can hose them off really well. I have a pair with no liner as well, but my feet get so much more dirty in them.
Don't know what I'm going to do when they finally wear out, but luckily I bought two pairs. I don't think they make them any more.