I've been reading Chem Geek's thread on pump efficiency. I see his lips moving, but can't understand what he's saying being only a mortal.

I installed and AG 15 x 30 last spring. I was unsure the size of pump/filter after reading the posts here that pumps are too large so I called the manufacturer (Waterford) to confirm what size I needed. I told them I was to receive a 1.5hp pump and a 21" high rate sand filter and their response was that those two units were designed to work together. Okay, good enough for me. Heck I even called the manufacturer and they said that was what works...right?

After being on this fabulous web site for a year now, I'm getting that ole feeling again that I am way overboard on the pump. I don't understand head, curve or any of the other terms regarding pumps, but I've just received a new 4 x 20 solar panel and planned to add it to my 2 4 x 10s I used last year. I plan to go from flexable hose to a more permanent pvc rig and even make a rack to angle them toward the sun. Am I going to cause a shift in the quantum flux and cause havoc for the world and all it's inhabitants with this pump? What I really mean is am I going to blow the lid off of all my stuff?

Shelley