Clean It Up

UK General Cleaning Forum => General Cleaning Forum => Topic started by: James pryer on March 18, 2021, 01:28:56 pm

Title: White spotting on block paving
Post by: James pryer on March 18, 2021, 01:28:56 pm

Hi all,

On a 2 day job and have come across white spotting on block having. Put a 7% hypo mix on it and so far I can’t see any change.
Anyone know how to shift this?

Thanks

Title: Re: White spotting on block paving
Post by: Smudger on March 18, 2021, 02:41:50 pm

usually does the trick - try stronger dose - just double check its not white stones in the paving itself

Darran

Title: Re: White spotting on block paving
Post by: James pryer on March 18, 2021, 06:31:02 pm

Do you hypo before pressure washing? Or pressure wash then hypo?

Thanks Darren

Title: Re: White spotting on block paving
Post by: Slacky on March 18, 2021, 06:53:59 pm

Pressure wash first then hypo usually.

Then rinse, or turbo ...

Title: Re: White spotting on block paving
Post by: Smudger on March 18, 2021, 10:41:21 pm

yes as above pressure wash first - then hypo  otherwise your using hypo on dirt that is not cleaned by using hypo + things like black spot and slightly lesser white spot form a hard shell that chemicals find hard to penetrate if you turbo it breaks this shell allowing hypo inside and destroys the lichen much more effectively

Darran

Title: Re: White spotting on block paving
Post by: the king on March 19, 2021, 06:06:34 am

What percentage hypo mix to you lads use for black spot

Title: Re: White spotting on block paving
Post by: Smudger on March 19, 2021, 04:32:20 pm

50% to start - if still there neat
applied through ik sprayer so not wasteful

Darran