We must have the longer-term permanent tubes I think. Last time Em pulled it out was a few days before the month was up and it needed replacing, so the nurses were OK to replace it, but told me if it came out in less than a month to bring it back because they were very expensive - she didn't say how much though!

Hard to believe such itny thing can be worth so much!
ahh yeah considering how many we went through the first time when I was told I nearly fell off my chair they aren't exactly a feat of engineering !
like the pedisure un-subsidised is $70 a tin! geez