What tool for stubborn green spots

[Spit & polish]

Is a hard bristle brush good for poly conservatory roofs? As i had a job today where the green spots where a nightmare (used the little gardener scraper with abrashive on to remlve them) havent had such a stubborn one before.

I was using a medium flocked gardeners brush, but found it struggled unlike the abrasive dish sponge on the bits i could reach by hand.

Any washer applicator thats aggressive that i can put on the wfp or is hard bristle best or a liquid to apply first?

 

[Cleanco]

I use gardiners stiff universal brush for conny roofs.(red one) The blue bristles at the ends are great for those stubborn stains you mention plus they dig any moss etc out of the seals with ease. 

 

[Spit & polish]

Thanks Cleanco i'll give that a go

 

[Spit & polish]

Is razorwash or ubix any good for the little moss spots on the poly as so far the green and lumps of moss hasnt been a problem this job was really stubborn

 

[Part Timer]

Is razorwash or ubix any good for the little moss spots on the poly as so far the green and lumps of moss hasnt been a problem this job was really stubborn

You're not getting mixed up with moss and lichen are you, moss should come off a conny roof easily, lichen is a different matter all together.

 

[Spit & polish]

I probably am getting mixed up (looks a bit like a green snow flake)

And it is alot tougher than the other roofs so far.

 

[Pjj]

I probably am getting mixed up (looks a bit like a green snow flake)

And it is alot tougher than the other roofs so far.

Sounds like licken