How much mix to take to a job?

[email protected] said:

Hi guys,

Im still finishing off doing my homework for SoftWashing. I understand the % (I think) now. I understand what hypo is & biocide etc. I’ve ordered a couple of nozzles, gonna get another back pack soon as well. To start with I’m just gonna do my house & patio, then got a customer who’s got a small patio I’m gonna do for free.

Anyway I’m starting off just gonna mix my own Hypo with clever wash.

*The but I’m not sure about is how much you mix up for the job*

do you have a guide? I’ll be using a Gardiner back to start with, which will be 20/21L how much area would you expect to cover?? 

Many Thanks!. R

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Pjj said:

We mix mix it up as we use it , as for coverage it depends how you apply it are you going to spray it or put it through the brush and scrub on a low flow rate : what’s the surface you are putting it on made off , strength of mix all these thing will affect how much you use : temperature will also play a part , generaly one back pack full will treat a gable end and front of a 3 bed semi give or take a bit that’s spraying though , make sure you use the appropriate ppe and wet the area down first 

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[email protected] said:

Thanks for the reply. Ok, I see. 

With regards to spraying on or scrubbing on, which do you do? Is one better then the other? I was planning to spray on, then scrub over afterwards I’m presuming that’ll be the same..

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Pjj said:

From experience if its green algy a spray on will usualy kill it then light rub with brush with water and rinse job done 

if it’s black or  red algy you can spray it but I have found applying hypo through the brush at minimal flow rate and scrubbing will break it down and get rid of it much better , especially on k rend 

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[email protected] said:

Ah ok. Thanks. I guess in the end it’s all learning on the job.

I was gonna use a old medium mixed super-lite brush to scrub, seems that the actually brush doesn’t matter too much?

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[email protected] said:

Ok don’t worry, just read another forum post on Biocides. A choice then, as a opinion, do you prefer Benz or Algo clear??

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Pjj said:

We use algo clear pro as it doesnt have to be shipped from Ireland and can get it delivered next day , cannot really comment on other products as not used them but never had a problem with algo clear 

after pressure washing I offer it as a inhibited slowing down re growth some have it done some don’t : we don’t usualy just use a biocide as customers want instant results but have done a few roofs with it and got good results with it 

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