undyingking: (Default)
undyingking ([personal profile] undyingking) wrote2009-05-18 12:50 pm
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Grey water

Has anyone got experience of, or knowledge about, collecting grey water for garden use?

My current plan is to attach a water butt to the external downpipe from our shower, like the one that collects rainwater on the guttering downpipe. What do I need to consider?

For example, does gribble collect in the butt, that might need clearing out or treatment? What's the pH of the collected water going to be like? Do you need to let it stand before using it on the garden? And other such things that I haven't thought of.

[identity profile] undyingking.livejournal.com 2009-05-19 08:28 am (UTC)(link)
That's my understanding too. The theory is, I think, that aphids will be the only things actually on the plants as you spray them, and the detergent'll break down before any other insects meet it. But whether that would be as safe when you're actually watering the base of the plant with it rather than just misting the leaves, I'm not so sure. Dilution levels must be a factor too, I suppose.

[identity profile] a-llusive.livejournal.com 2009-05-22 04:43 pm (UTC)(link)
I've read elsewhere that detergent isn't such a good idea, so abandoned using it. They suggested its the vigorous water of the spray that is of help rather than the detergent anyway.

I'd suggest an arrangement with an accessible valve so that when you clean the shower more aggressive cleaning chemicals go out the 'old' way and you only have to consider regular toiletries which are probably adetergent-level problem, depending on your plants.

[identity profile] undyingking.livejournal.com 2009-05-22 05:04 pm (UTC)(link)
Mm, that could work, it could just be a valve on the downpipe diverter.