Joint sand used for paver applications should be a course, washed concrete sand. This sand takes more time to get into the joints, but is also more difficult to wash out. Do not use silica sand or mason sand. The joint sand should also be completely dry. If the sand you have is damp, spread it out to dry before using. Wet and damp sand will prevent it from flowing freely into the paver joints.
Drinking eight cups or two litres of water a day is longstanding advice. But is there any scientific basis for it, asks Dr Chris van Tulleken.
Keep Hydrated and Healthy. Every system in your body requires water to function properly, according to the Mayo Clinic, as the fluid makes up 60 percent of your body weight. The Institute of Medicine recommends that men drink 13 cups, or 3 liters, of water a day, and that women drink 9 cups a day, or 2.2 liters. Some people consider plain water to be boring and tasteless, finding that the carbonation in sparkling water is more interesting and filling because of the bubbles.