[cleaner-exteriors]

has anyone made their own moss killer using sodium hypochlorine?
If so so much chemical to water?

[drive surgeon]

you mean sodium hypochlorite?

or sodium chlorate?    two different chemicals for the job.

[cleaner-exteriors]

hypochlorite :

[Griffus]

sodium hypochlorite is bleach.

There is a product I have used (when pressure washing was tricky) called Algon. This seemed to do a reasonable job.

[drive surgeon]

sodium hypochlorite is chlorine which is bleach,

i dont know how this will work on moss. i suppose it will kill it like sodium chlorate (weedkiller)

i would not put the chlorine down tho incase you bleach the surface.

[Nathanael Jones]

American roof cleaners use a lot of SH. I find it good for softwashing walls & killing algae,.. but moss is a lot tougher and isn't removed by SH very effectively. Try MossGo Pro instead, or a DIY solution with borax & copper sulfate in,.. both take a few weeks to be effective tho.

[kordun]

What is the best fats acting moss/algae killer. I’m looking for something to pre spray paving/patio. Leave it for half – hour and then to pressure wash.

[cleaner-exteriors]

sodium hypochlorite is clorine, it is concentrated bleach when salt is added, i,ve read alot of american firms use this very effectivley on asphalt, what i want to know is how much sodium hypochlorite to water?

[Nathanael Jones]

SH is normally sold in 10% or 16% solutions. I normally buy 10% and dilute 2 parts water to 1 part SH.

[cleaner-exteriors]

thanks nathanael