Well , lately i've been on a new plumbing kick, and decided to change everything over to white schedule 40 piping, i think it looks way better then all the flexible hosing i was using, so i bought a new return pump Mag 7, and hooked up the ball valve to control the output, its been running for about a week now and it works great.
I aslo modded harleys kalk reactor with an input ball valve so i don't have to undo all those screws everytime i want to add kalk, i just add it with a funnel and pour it in, then close the ball valve.