Yes 120 is far to small - your drawing at 21 litres per minute - if flow is poor you have as little as 6 minutes run time
most places seem to have reasonable flow of 15 but thats still a deficit of 7 litres a min which gives you 25 minutes maybe ? before your empty

Chemicals:

Hypo
TFR
Graffiti cleaner
Brick cleaning
Oil Stain Remover
oxalic acid
plus several other chemicals as you come across various works

I use different places as some products are better than others

thanks again all for the replies.

one question i have is regarding the way everything connects. I understand quick release is the way to go, however seeing there's more than one type. i assume it's the midi quicck release most equipment uses? rather than the 'large quick release'?

regarding chemicals, it seems the basics required are hypo, surfactant, biocide, oil stain remover, rust remover. does this cover most requirements? do people tend to buy all these solutions from different suppliers or all from one place? with carpet cleaning it seems most suppliers do some sort of variety of every product required which makes it nice and easy. is that the same for jet washing solutions?

As I've grown older (and boy, am I growing older) I've drawn the conclusion that people detest change.

Explains a great deal of modern life. Change of any kind. People hate it.

Vin

No, you just hate anyone having a different opinion! Evidently, you can't actually rest until you reach a certain level of self satisfaction with your opponent- hence locking, then unlocking this thread!😉

That's weird. I thought I'd put another post up as I've also got a set of roof scrapers, 20 separate tile-profiles, 3 wire brush blades and 2 heads, I hadn't posted initially.

What makes the fsc? Photo please