[babs2020]

hi guys got a one off jet wash job for one of my customers as i am a window cleaner  shes had some do last year and was a bad job so said i would do it for when i clean her soffits i use tfr on soffits for cleaning them shes some got  bad green patchs  on patio can use tfr or is there some thing better for patios  don't want to spend to much  to put price to high for her thanks

[Matt.]

TFR may help but I can't see it. 
If you can't get no hypo then go get some bleach, use ya bucket to put bleach and water in mix a bit of fairy,
Tbh mate jet wash will get it up, depending in machine will just take longer

[wpclean]

You would be better to pass on the job to a local company who specialize in this type of cleaning, and maybe ask for a few quid for the referral.        That way you keep your customer happy.