Hi All! I’m new here and my husband is starting radiation/cisplatin tomorrow and he was told that he needs to drink 2.5 to 3 liters of water a day to flush his system out. I want to get him a big water bottle but I’m just wondering what kind of top would be best for him to drink from? I know radiation will bring all types of issues with his eating and drinking, so will it be easier for him to drink from a straw or just an open top? Thanks so much!