I was using the cap system, four in total. I lost one controller in the middle of a feed cycle and that left my plants flooded, on easter while out at the families. Next cap went down because of the timer would not turn. love to cycle manually...that was a joke and the last straw. so to answer your thread i dont used cap i found so local guys how built a new system growelf. Nice and local for me. there system has been chugging a way without a problem. My medium lava stone. No need to customize water stays below inner bucket. I use all E and F for, veg. moms, bloom. the move is very easy all the inners are the same. I clean all buckets, and the rez once a week. The love the white bucket because I can see that they are clean. I was worried about the white, but they are UV rated. T that i havent notice anything diff when thinking about fungi. I use advance nutz with sensi as my base. LOVE my advanced, but a little spendy. Like your thread, and forgive my SPEELING. i grow better than i spell.