Hi Randy I'm running a avast k1 kalk stirrer my sand is clumping up I started up using seachem kalk I had to double the dose it get it 12.4 I have know clean my reactor and put a different kalk I put one cup that's what avast marine recommended what how should I go about the sand clumping I broke it up as much as I can also change the drip rate 5 ml per min I have 150 display and trigger systems 39 platinum sump