Skimz Calcium reactor driving me nuts!!!!!!

[WaheedNaidoo]

I bought a Skimz Cm122 calcium reactor about a year ago and I've finally got it online, I followed BRS video regarding the plumbing but the pump is unbelievably loud and is creating a TON!! of bubbles, I am not sure what I am doing wrong, I am feeding the calcium reactor with a small 800l pump and I have not hooked up my CO2 canister to the reactor, does anyone have any advise as to why the pump is creating bubbles, the pump is a bit of distance from the tank and has to travel upwards to feed the reactor.

 

[blaxsun]