Lee Valley tools sells them in Canada (they do mail order). We just got one this winter we used it to water our plants when we were in Mexico. It worked great, I used a furnace humidifier float to auto fill the bucket it gets water from. We just started using it for seeds but I haven't found that we get dry cells, but I do need to water by hand about every 4 days. It just doesnt seem to keep up. But we are having better
success with impatients than ever before!!

I bought one from Lee Valley last spring. Used it to keep my tomatoe seedlings watered as I am not at home everyday. I found the dificulty that I did not think of before hand, was that the roots grew right into the mat. I had to tear the roots when I moved the pete pots, pete pellets and even the ones that were growing in small plastic yoghurt conainers. If I use it again,I see I will have to move each plant around more often. (with over 150 plants that may defeat the whole idea of going away for a few days). Martha/zucchini