Calcium reactor plumbing

[freezetyle]

So i've recently become fed up with feeding my calcium reactor with an aqualifter pump. My plan was to tie it into my return line from sump to the display tank.

since the majority of the retune line is flex hose i only have about 7" of hard pvc to tie the line into. I have a leftover self piercing saddle valve from my RO unit that i was thinking of using instead of buying a t-fitting and the scaling it down to john guest fitting. Since the seal is pressure fit I have visions of some leaks coming from the saddle valve. Anyone have experience with this?