Hi Emily, Happy New Year, I use a pressure washer on mine!
2013 photos & vids here
eff37 on Flickr
In reply to WendyBartter:
Hi Wendy, does the pressure washer not take all of your paint off though?
In reply to EmilyT95:
Not that I've noticed Emily ...very good for getting rid of green algae on untreated wood surfaces & use it on painted wooden walls of mobile home to no detriment!
Ah I'll have to buy one and give it a go. Can I ask which one or which brand you use?
Can't remember for the mo, it was a good offer from local DIY store couple of years ago now, but not Karcher which is the most well-known! Try a test patch first Emily, might depend on what paint has been used!
Thanks Wendy I'll give it a try.