Paulgrow wrote such a awesome article about the gutter garden I started on the roof at my church. The article is http://davesgarden.com/guides/articles/view/4362/
I said I would try to put together some information on the makings of the gutter garden, so here goes.
Im glad to see more gutters! Well i tend to call it trough gardening when im explaining it to people, but it is what it is, a gutter lol. It was almost this time last year I started this type of growing, and boy have I had some produce.
This could be a great way for handicapped people to garden or maybe seniors who cant get around as well, or who use a scooter or wheelchair.
I am about to start my brassicas for the winter crop, but in the pic you can see cukes and peppers still loving the TX heat.
yes I have the same float valves as you have, and also found cheap float valves at an ace hardware that are used in swamp boxes. I chain all the troughs together with piping and keep a 5 gallon bucket in the greenhouse next to it with a single float valve. the water level in the bucket and the troughs are all the same so i had to take care at making sure everything was perfectly level. I would get more pics but its on its 5th inch of rain in the garden today, a wonderful break in the drought.
what do you use as growing media? I use a product from lowes called landscapers mix by hapi gro. its basically bark and perlite, and i think it does well in a wicking situation. i cover the surface with cypress mulch to insulate the mix. the water wicks higher this way ive seen. no more peat in my mixes.
oh here is a trough i built for a friend of mine, 60 ft of fun growing he had this year.