[stevon]

what is the best chemical I can put down on a block paved drive or patio b4 pressure washing.any links please.thanx in advance

[Smudger]

To do what ?

[stevon]

to loosen the surface dirt b4 pressure washing

[samson]

to loosen the surface dirt b4 pressure washing

If it's a decent pressure washer you won't have any problems 

[stevon]

thanks for your reply Samson!! we all have to start somewhere this is why ive come on this forum

[Smudger]

Only need to apply chemicals after you've pressure washed.

You use different chems depending on what you want to clean and what you want to remove hence the question 😎

Darran

[Smurf]

Depends what type/spec washer you use really as most like diy electric cold water karchers etc rely on chems to help  but the industrial type high spec washers will clean most surfaces ok.

The only time you may need to use chems is on stains that the pressure washer you are using at the time don't remove very well like stubborn algae stains, lichen (black spotting), oil etc..

What type of washer do you have?

[stevon]

in the process of getting one smurf.ive already spoken to ben whos been very helpful with machine prices etc.also looking at the Lincoln machines.its like starting wfp again-theres a lot to learn & pick up.

[Smurf]

in the process of getting one smurf.ive already spoken to ben whos been very helpful with machine prices etc.also looking at the Lincoln machines.its like starting wfp again-theres a lot to learn & pick up.

Ben is a good bloke 
I'm sure he will point you in the right direction and tips too

[samson]

Where are you based, if you are near west yorkshire you are welcome to have a look at ours