How do I get my frail 85 years mom to drink water? She lives with me after she second stroke. She's very weak, doesn't eat much, and will only drink about 1-1/2cups of water a day. Constantly constipated and complains she can't poop. Tried teas, popsicle, sow cones, juices-doesn't work. Refuses to drink or eat anything with water, says she's Too full.