the idea is a very good one, but i think they should try and get it working from the brush head, a taping mechanisim, on/off dont know about you ewan, i must get my hose traped loads of times in a day, and this would switch the flow on, maybe not, but i think it would, the automatic hose cleaner is complete, and still my sl-x has no dirt or grit, so i know it works great, the problem i had was fitting every pole base, took me a while to work it out, so hoping to find a company to make them cheap enough,