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I have a 300wh battery if you like to borrow. I’m 10-15mins away from you. You have my number

Get a DC pump. I have sicce sdc. Skip the ac adapter. Get a dc to dc cable.

If you plug in the pump via the DC connector , not through ac plug, the battery last way longer . No loss via DC-AC-DC conversion. My tiny 300 wh battery will run the flow pump for over a day

I’m adding fresh kalk once a week. Plan to move it to once every 2 weeks . Not every water refill. In my setup, water refill everyday so manually adding kalk defeat the purpose of automation. I’m not testing for saturation. My comparison baseline is based on my old setup where I mix a big batch...

Alk is 8.2 to 8.3 range. I should also mention I measure twice a day at 7am and 7pm

Space limitations.

ph low-high without kalk - 7.5 to 7.8 After dosing - 7.9 to 8.0 I’m only dosing at night. From the limited info i read, ph 7.5 is unlikely and likely a probe issue. I calibrated the probe 2 months ago.

If anyone interested, here's the part list this project. I already have Hydros control , but any control ecosystem should work. You also need any dosing pump for the actual kalk dosing. I used Kamoer X1 . https://www.amazon.com/dp/B0B9XCPSSS?ref=ppx_yo2ov_dt_b_fed_asin_title...

Happy to report the system now working well. I cannot say i'm dosing fully saturated kalk, but 1. alk is consistent. 2. i get a 0.5ph boast from the kalk The trick is stir slowly for a longer duration (1 hour).

@MichaelB are you taking all the frags and bring it to the swap? I might not make it to the swap but I’m local . Can I have a frag of each? Can pick up from you or @AARP-reefer ?

I didn’t know Asteria eat coralline. Learn something new today. Makes me want to let them be vs picking them out everyday.

@Turkeysammich I’m using brs kalk right now. What’s your favorite brand of kalk that dissolves fastest? Not looking for the cheapest.

The idea works but a bit more hardware and real estate with second reservoir. Since I figure I can stir slowly without disturbing the crust, I can stir for a long time , hopefully without impact on potency. I’ll report back in a week if this works long term. I’m not worried about overfilling...

Container have a lid but not air tight. No co2 scrubber

Experiment with slow but longer duration stirring help. I set the stirrer to 50% power, and let it stir for 1 hour. The ‘crust’ at the top of the solution did not get disturbed during the process. I assume you this is good as it prevent co2 from entering.

I am aware of adding vinegar to the kalk solution. However I also read it’s a form of carbon dosing . My nutrient is hovering at zero, any form of carbon dosing may complicate things. Trying to balance over feeding , dosing nitrate and phosphate to keep above zero.

I meant the following . If I add fresh kalk , the potency restore for 4 days. I doubt starting with 10tbs vs 5 tbs make much difference since I’m dosing equivalent of less than 2 tbs . It sure seems like kalk losing potency in the solution. My setup is unique. Fill and drain ( dose to tank)...

I'm seriously thinking of abandoning Kalk and strictly go with 2 parts. Kalk alone cannot meet my system demand, so i'm dosing 2 parts in addition. The advantage is simplicity ie less thing to maintain. The cons is PH drop ( which is the main reason i added Kalk). Who cares about PH, right...

My original post have some typo due to autocorrect. Fixed that. I meant i mess with the stirring duration but it didn't make much of a different. IN my setup, i use a mag stirrer. Run it from 8mins to 20mins. I can clearly see the the entire container get cloudy when the mag stirrer turn on. I...

Reviving this thread. The diy stirrer works as intended. However I’m hitting the issue @derek_SR mentioned - consistency. It appear that the kalk is losing potency after 3-4 days. I put enough kalk in the stirrer to last 2 weeks but after 4 days it appear the potency lost at least 50%. If I...