November 21, 201312 yr I am pretty sure you can go into your client -> click on advanced -> entity debugger -> and hover over the whirlpool and that gives all its info. im not 100% sure but thats what i did to get a lectern id
November 21, 201312 yr Whirlpools have a consistently changing ID so your script may work for a day but after that it won't. Get the vertices of the spot and if its 35 (I think) then that spots a whirlpool.