We need a schools campaign to advertise the benefits of drinking water to combat the vending machine industry, which costs pupils plenty - in more ways than one.
Most of the schols in Inverclyde have fresh, chilled water fonts in their dining areas. Pupils are no longer dehydrated and there is a filler to allow them to fill up their plastic bottles so they can have a drink during PE or when they feel thirsty.
"Go on, take a drink" is postered above each font, and the advice appears to be working.
John Burleigh, Inverclyde.