Yodi yo man!i saw your mesg about the electrical side of things,ive been wondering for a while now how hard it would be to build a self ph doser,seeing the ones on the market are up to 1000 buks,but was thinkin maybe build one out of a few parts,any ideas on how hard it would be or how easy for that matter,im a plumber by trade,so if i can help you in any way too bro,