Hey man yes its for the ice cap kalk stirrer and its a drip every 3 sec i have tried others just cant seem to get it to work the needle valve you mean for the cal Reactor? The little silver one that is hooked up to the air for bubbles


Oh those ones i just looked at the link how did you find the?

it did the job.
I had it tee'd off my return.
If I recall I used a JG 1/4 shut off in-line before the valve. To slow down the flow first, then fine tune with the valve.
I think for what my purpose was and yours, the lack of precision is acceptable.
my flow rate was faster tho.

only thing I would be weary of with a slow drip kalk effluent is the potential for precipitate to form at the exit tubing.

yes just have to make sure to clean the hose with some hot water