
Hi ALL ,for those who have a polytunnel and want to recycle rain water,which does not fall on their crops because they are covered by the polytunnel.
May I share another new idea of mine with you which I believe as not been tried before AS IF I HAD a polytunnle which I believe is a good idea to use.
MY IDEA IS, I would make up a system to catch all the rain water which would normally run off the polytunnel, which I then would make go into a water butt done in a simple way.
First I would buy some cheap plastic guttering or long lengths of plastic pipe which I would saw down the middle to give me two halfs each time,these I would support by putting 2-4 say 10ft bean canes or less at the furthest end corners,and I would sink them in about 1 foot,then I would laydown alongside my polytunnel all my lengths of guttering until it came out enough to flow into 2 water butts,one on each side of where I would walk in,putting 4 canes to support where the ends of each gutter over lapped each other,so that no water leaked,held in place by what ever you had like tape or string. This I would do on both sides right next to the cover so my guttering was sloping down towards my water butts resting on bean canes spaced out in 4s at each overlap joint.
I would then put a length of guttering along the back of the futhest end sloping from one side to another a bit,resting on the top of my 2 side gutterings where the 4 canes are on each corner,but a bit shorter so that any rain water will drip down into the side ones,held in place by what ever you are using.
Next is how I would get my rain water into my guttering which is away from the side of my polytunnel. I would use any sheet of plastic for example,bin liners cut in 4 - 6 inch wide long strips or green bags or even shopping bages would work over lapping each other too..
NOW COMES THE BEST BIT,I would get a real of sticky tape of some sort which will stick to the polytunnel cover material,I would then lay all my lengths of plastic in line with my guttering so that some of it can be stuck to the polytunnel cover and some lays in the guttering not stuck. JOB DONE.
What I would have then is a polytunnel with a attached flap like system that lays inside my guttering which slopes down into my two water butts supported by bean canes,I would then lay some more bean canes down on top of the flaps inside the guttering to help hold it in place. This way would also work if my polytunnel was on a slope too.
It's up to you now whether you try it or not,I have over 8,000 small water buts I use so I'm ok. May you and yours live long and happy. Happy New Year 2007. John. J.R.P.