In Scotland getting water is easy. Open your mouth wide. Then point it skywards!

A couple of the pubs on the route have outdoor taps. Failing that you can ask inside. The only bit thats very hard to get water is up the side of Loch Lomond, but as ptc says, we've had a lot of rain. The wee streams that come off the side of Ben Lomond will be good enough to drink. 2L shouold be enough to see you through any of the days, unless it's an absolute scorcher of course ;)

PTC knows the score but as he says it IS a low level walk , so water really needs to be purified . i took a hand-pump but hardly ever used it as i filled up 2 liters , mostly on campsites and that did me for the day ......

Don`t be afraid to ask as the way is well thought of and supported - as you`ll find , most of all - ENJOY !!!

This can be an issue at times, right now though there's been so much rain that all the burns coming from the hills are fast flowing and usable. Much of the Way is low level and some through farm land, neither of which is good for water, but one of these is ideal http://www.petesy.co.uk/?p=196

There's plenty of places to fill up from a tap as well, hotels, campsites, garages and the like. You won't be stuck.