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.
The average person loses about 10 cups of water per day through sweat and urination. At the same time, you gain fluid from drinking liquids and eating food. So how much you need to drink is a tricky question. You may have heard the âdrink 8 glass of water a dayâ rule.