Hi there does the L5 work ok with microbore hose as far as fittings and the the drop on pressure if you have to modify microbore to normal garden hose size. 
Ben
I currently use standard 6mm id Microbore but will be upgrading to Thermobore when it needs to be replaced. I'll also be fitting a 15mm (L5 connection) x 3/4" (Reel connection) tap hose from the local DIY store to connect the L5 to the outlet to the hose reel. I currently use standard hose pipe and I'm a bit nervous it might split where as the tap hose is rated to 100*.
Regards
Mr H