If the hose splits somewhere or pin holes...just cut out the damaged section and insert a decent hose joiner......just like a new hose My 100meter hose (Oct 06) has about 6 joiners in it...they are cheaper than buying a new hose.CheersDave.
I had Thermobore and it lasted me a week,when it got hot the outside just went like warm cheese all i had to do was pull it round a wall or pot not hard and bits would just peel off of it until you could see the braided hose part.
I got it from Gardiners,it might have been a dodgy length of hose because it wasn`t right and Alex let me change it for normal microbore.