[Gordon_Taylor]

Evening all,

I'm interested in using some hypochlorite for pressure washing, couple questions do you buy it in liquid form does it come as a powder.

Also what sort of mix do you guys use?

Many thanks,

Gordon

[Griffus]

It's liquid and comes in various strengths.

Dilution depends on what it's being used on.

I would do a bit more research as it's not something to use without at least a basic working knowledge.

http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1194947390050

[Gordon_Taylor]

Thanks Ian,

I'll be doing plenty of homework before I use it, the job I have in mind for it soiled concrete with no plants or grass so should give me a chance to try it out.

How long would you leave it to soak in?

Regards,

Gordon

[Griffus]

Try 5 minutes forst time. Apply to damp surface and don't let it dry out. Leave longer on second application if required.

Concrete absorbs stains and so there are no guarantees. Grass staining especially is a nightmare.