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Tannin Removal on render

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RWCleaning

Well-known member
Messages
2,075
Location
Bournemouth
Hi guys,

Anyone ever had to remove tannin from render? It’s something that has come out of the timber decking. Like a brown oil stain sort of. But it is organic I believe. 2.5% hypo didn’t

Thanks 

 
Never heard of it, but I’ll have a look cheers. 




Basically a hot pressure washer but low pressure producing steam to remove dirt they do work well but expensive to buy , don’t know if you can hire them or not , I have borrowed a friends. (Doff) very similar  a couple of times nice bit of kit  

 
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