When I used to have my 3 red eared sliders I had to vacuum one day as the tank was very dirty so I went to vacuum and im sucking and nothings coming out so I quickly jerk the vacuum with the tub still in my mouth as I didnt think it would immediately shoot out, but it did. I got a mouth full and I mean complete mouth full of dirty turtle poop and nasty smelling and even worse tasting water. I was so diguisted I immediately put the whole vacuum in the water and ran to my bathroom where I was gagging for about 15 minutes and then I brushed my teeth about 5 times and gargled half a bottle of listerine. I can still remember the gross taste.