[Rich Wilts]

That can only be in jest surely. A flask of hot water won't do bugger all, it's a flask, they're made to retain heat not emit it.

[Shane sharples]

No joke mate, u should see the temperature rise in me tank after I put me socks in it after a hard days work 

[Smurf]

No joke mate, u should see the temperature rise in me tank after I put me socks in it after a hard days work 

 

[dazmond]

What if they don't have an outside tap? 

 its not a problem.i use my pure then.if its a f/s/g clean i usually use pure anyway as i clean the windows as i go round at the same time.its conny roofs that need a higher flow to speed the job up really.