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Hypo for white spots

It will kill it yes but to remove them instantly it will need pressure washing , if not over a period of some weeks/months it will gradually come off . Wet the area down first with water , then apply hypo mix , keep it wet more than one application may be needed and possibly a stronger mix up to 50% 

Hears one we did 

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Small areas I use a watering can but bigger areas a gardiners backpack

Just ordered a downstream injector for my pressure washer though to make things easier

This was a small job yesterday covered in blackspot and just tipped mixed hypo straight out of the drum and brushed it inIMG-20190601-WA0010.jpeg

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Have to let it dwell for a while but I just got on with the front of the house while it sat for half hour or so

Once finished I gave it a quick 2nd treatment with neat hypo on a few stubborn spots and then blasted them off

It was only a 4% mix also.. no need to go too strong

 
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I never seem to struggle with the white spots p/w smashes through them.. Black spots are the problem.

Did a job Friday put three applications off neat hypo and some still weren't budging.. That included leaving them for a couple of hours while I did 80m of fascia cleaning on the property and first clean windows.. Customers was happy about it..

I just brush the hypo on.

 
I never seem to struggle with the white spots p/w smashes through them.. Black spots are the problem.

Did a job Friday put three applications off neat hypo and some still weren't budging.. That included leaving them for a couple of hours while I did 80m of fascia cleaning on the property and first clean windows.. Customers was happy about it..

I just brush the hypo on.




A good dosing of hypo keep applying it and don’t let it dry out dwell time of up to 40 muinits , then pressure wash with fsc and or turbo or vario nozzle never have a problem removing it 

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To be honest any good pressure washing machine will remove white spot its black lichen that's the real issue and where hypo at a much stronger concentration than 3% is needed. I've put it on neat 14/15% and still had issues with it and had to reapply-much depending on the porousness of the paving the lichen is on

 
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