why 




??/
well the fibreglass was going to be my original option, and then just have a grey gelcaot topcoat, but that didnt work out, i like fibreglass because its very strong, and can get a very nice finish
the fibreglass goes off it 20mins,
my best tip its to prepare well and dont do it on a really hot day.
And i always get water in the back, if i fill the tank up to the top for big days when someone is with me, i lose 20l on the journey to the job.
Oh and the heater, yeah very good, used it on tuesday to clean a con roof, got pics of that to come up soon.
I really like using for gutters and con roofs and in winter, not much point any other time, makes things more difficult with the floppy hose