Simple to construct, use and clean
I'd looked at whole load of spray systems, on a different website, and this had the most consistent good reviews and I agree with them. It was straightforward to put together, although the instructions do look quite daunting, and it worked beautifully. There is an inconsistency of spray depending on how full it was but I found that really useful. As it was running out the spray got denser so I used that in places where I needed to be more precise, when I'd just filled it up I focused on doing the width/length of the fence panel. It was easy enough to clean out too. It made a hard job much more straightforward and we got 30 panels done in an afternoon (about 4-5 hours) with me spraying and my husband following to do the bits of trellis and near the fence posts.