Delta P can even strike in a swimming pool while draining . Everybody should know about this . Divers , especially instructors should know about all the rules of physics that can effect them underwater no matter the location . <| sep |> but the sound probably takes more than a volley ' s worth of time to reach them <| sep |> That ' s cool I can wait , well if I add you then I can invite you when we ' re both online so you can see the Chaks before the cool down is done What ' s your gamertag ? <| sep |> Rule of thumb they tell you , is to have n 1 litter boxes , where n is the number of cats you have . Personally , I just use one box for each cat of course they share them anyway , but I only have 2 cats . I suppose it depends on how often you get to clean them , but my advice would be to get at least 2 , better 3 , litter boxes .