[swanson]

What ratios do you guys use when softwashing from a back pack.
Hypo to water ratio.

[Smudger]

depends on what you want to remove and how bad the stains/growth is you want to get rid of - also how long do you want to hang around seeing if its worked or need a second/third application...

Plastics  1 part hypo 3 parts water - light use

Medium  stains - algae and lichen 50/50

Heavy growth of lichen - light covering of black spot   3 parts hypo 1 part water

Black spot (heavy). Neat

Darran

[Splash & dash]

Plastics  6 parts water 1 part hypo
Walls      4-5  Parts water  1 part hypo
Patios     4-5 parts water 1 part hypo
Badly black spot covered patios 50/50 to beat if needed

[swanson]

Cheers guys