This is what i said today, when i looked over back to the van whilst doing a bungalow to see some bloke with a hi vis on staring into my system in back of the van.  He came over, and had terrible english.  Could barely understand a word he was saying.  Turns out he was an amazon driver, fed up and wants to be a window cleaner.  Normally i would of told him i don't have time for chit chat unless with customers, and told him to get his beak out of my van next time, but i was in a good mood and he seemed like he genuinely wanted to become a window cleaner.  He literally had a notepad out and was writing down everything he could see in my van.  He then asked if he could take photos of my system so i thought, meh go on then.  
He told me he had £6k to spend was that enough, i said yes, more than, just make sure you purify the water before using it.  Should of seen the look of horror on his face....  I said, look don't worry you got £6k?  Phone PureFreedom they will sort you out lmao.
Oh, before i started giving him advice i made sure he wasn't from the area i was working in.  He lives in Liverpool, keep a look out lads.  I give it a year, you will probably see him splashing tap water all over council houses for £3 a pop.
Bless..  
 