How to filter rain water ???

[Anthony Darby]

Tights only get rid of the lumpy bits.

[Armin]

Maren,

there is a new filter system from a Saxon vendor. The benefit is you can see the degree of dirt in the filter due transparent pipe, easy in handling and adaptable to many downpipes-Ø.  There's a video to explain the function and an online-shop too.

http://www.fallrohr-filter.de/home-fallrohrfilter.html

[Maren]

Armin,
that's a beautiful filter, I love it's functionality, but not the price. I'd need 3, one for each greenhouse. Including tax and delivery charges, it'll come to roughly £400. I think it'll have to be ladies' tights for the moment. But thank you for finding it. I wish...

[John85]

Maren
You can make something similar to the filter seen in the video with the filter of a old washing machine.I made one for the greenhouse.It is smaller but for a few square meters it is fine.For the downpipe of the garage I invested a couple of pounds and bought one used in a spraying machine behind a tractor.You can buy it as spare part and some are not expensive.Of course it needs some work to adapt it but you may be lucky and the diameter may be the same.