Hi Fenscouse....I'm sorry mate I cannot help with the reel ( I am in Holland ), perhaps one of the other guys on this forum can help. It is a ratcheted reel 9m of hose, a bit like those they use for compressor airline hoses...
As for water I am getting aprox 13 litres of water at 000ppm an hour, yes and it is concerning that there is so much waste...

but at least you can have it go back into the waste pipe and it will be used again.
ps...I am not expert on any of this so take my words with a pinch of salt.
Cheers
Dave.