ericd Posted October 18, 2011 Share Posted October 18, 2011 Hi all, this is for our North facing conservatory in Whitley Bay. Algae has started to get a grip on the top of the double glazed glass roof and am thinking about spraying a diluted bleach solution with a long nose sprayer and let the rain do the rest....Is bleach the right product for that or do I risk to turn the white PVC in yellowish plastic?Thank you for any suggestions. Link to comment Share on other sites More sharing options...
Pierre ZFP Posted October 18, 2011 Share Posted October 18, 2011 I used very dilute Jeyes fluid for the same thing. Worked a treat with no ill effects Link to comment Share on other sites More sharing options...
ericd Posted October 18, 2011 Author Share Posted October 18, 2011 Thanks Pierre....what do you call "well diluted" ?? Link to comment Share on other sites More sharing options...
Nearly Retired (I am now) Posted October 22, 2011 Share Posted October 22, 2011 After it's cleaned you could fix a copper strip somewhere near the top - maybe where the rain runs off the main roof (?). It seems that algae don't like the very weak copper solution caused when rainwater runs off the strip and your glass stays clear of them. Link to comment Share on other sites More sharing options...
Pierre ZFP Posted October 24, 2011 Share Posted October 24, 2011 [quote user="ericd"]Thanks Pierre....what do you call "well diluted" ??[/quote]Sorry for delay in replying, I've been away for a few days.By 'well diluted' I mean one small capfull to a large bucket (at least 5 litres) water.I don't know if this is the recommended amount as the label has long rubbed off my tin of Jeyes!It does smell like a public loo for a little while but this soon goes, or maybe your nose just gets used to it [+o(]EDIT: I think I will try the copper strip trick too! Link to comment Share on other sites More sharing options...
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