Hi all

Looking forward to Spring ...

.... when I come to clean the white-work(?) of our new porch, built last
year, is there anything that can be recommended to clean it well? Or do
I just use car shampoo or something similar?

Of course I'm aware that various specialist cleaners exist, and indeed
I'm happy to buy one of them, but I'm wondering if they are simply
expensive "snake oil".

TIA,
John