Whats the best way to remove algae from decking

rodz | 17:52 Sun 30th Mar 2008 | Gardening

6 Answers

The parts of the decking under the trees have gone green over the winter, is there an easy way to remove this.
I do have a pressure washer but wondered if I should treat it first.
Thanks Rodz

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shylock73

I use a weak solution of Jeyes Fluid works for me. Read instructions on the tin for your requirements.

rodz

Question Author

Thanks shylock73
Rodz

beechgrove51

Normal household bleach would be a cheaper option.

rodz

Question Author

Hi Beechgrove51
This is the option I have just tried after power washing it first, looks OK.
The decking oil is expensive
Rodz

nonomaybe

Be careful when using caustic agents and power washers on decking as they destroy the fibres and cells in the wood that give it it's structure, what you are doing is hastening the deterioration of the decking, better to scrub with the rotary scrubbing attachments that you can get for use with the power washers

rodz

Question Author

Hi Nonomaybe,
Didn`t know that.
I only used a weak solution of thin household bleach and have put two coats of decking oil on.
Thanks for that
Rodz

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