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Author Topic: Calcium precipitation  (Read 2660 times)

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Offline Reeferntraining

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Re: Calcium precipitation
« Reply #15 on: November 03, 2017, 16:43:33 »
So, my Calc reading yesterday was 370. So I bumped the dosing up 100 mL to 560mL/day. Came home today and tested at the same time and the Calc reading was 380. I am going to bump it up another 100 to 660mL. There is still no precipitate on the heater that I cleaned off the other day. Iím at a loss.

Offline Lazylivin

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Re: Calcium precipitation
« Reply #16 on: November 03, 2017, 19:18:17 »
Do you have a pump where your dosing? If not you may want to try that. Can you check a corner or two in your display tank to see if they sand is hard?

Offline Reeferntraining

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Re: Calcium precipitation
« Reply #17 on: November 03, 2017, 21:06:37 »
I dose alk into the overflow chamber where there is high flow. I dose Calc into the return chamber.

Yes, the sand clumped in a few spots when my Mg was low. It hasnít been clumping since I started testing/regulating my Mg. The Calc doesnít appear to be precipitating anymore. As evidenced from me cleaning the heater off 3 days ago and have not seen the precipitate come back to that area. Will it just take some extra dosing for a while before the Calc consumption comes back to normal?

Offline Lazylivin

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Re: Calcium precipitation
« Reply #18 on: November 03, 2017, 22:23:46 »
There is defintley massive precipitation going on. The dosing is 3x-4x what it should be. As far as showing on your heaters, that doesnt show overnight. Takes months

Offline Reeferntraining

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Re: Calcium precipitation
« Reply #19 on: November 03, 2017, 22:37:06 »
How long does it take after you get the Mg stable? Itís been two weeks. I just took my skimmer apart and it was a mess.

Offline Lazylivin

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Re: Calcium precipitation
« Reply #20 on: November 03, 2017, 23:45:15 »
When the precipitation stops the amount required to maintain proper levels would drop immediatley. Until that drop occurs the problem causing it is still present.

Offline Reeferntraining

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Re: Calcium precipitation
« Reply #21 on: November 03, 2017, 23:52:56 »
Any ideas? Iíve been doing full tests every day for two weeks. Everything is stable but the Calc.

Offline Lazylivin

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Re: Calcium precipitation
« Reply #22 on: November 04, 2017, 10:02:43 »
 Yes, add a pump where your dosing.

Offline Reeferntraining

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Re: Calcium precipitation
« Reply #23 on: November 04, 2017, 16:18:03 »
500 GPH circulation pump added to my 8X18 return/dosing chamber at 3pm. Fingers crossed 🤞

Offline Lazylivin

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Re: Calcium precipitation
« Reply #24 on: November 04, 2017, 20:41:04 »
Fingers and toes crossed

Offline Reeferntraining

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Re: Calcium precipitation
« Reply #25 on: November 05, 2017, 10:15:35 »
Unfortunately, nothing has changed. Still dosing 660 mL. Calc at 410 Mg at 1320.

The only conclusion I can come to is this batch of BRS CaChl is not full strength

Offline Wall_Tank

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Re: Calcium precipitation
« Reply #26 on: November 05, 2017, 10:23:27 »
Bad/contaminated Test kit?

Offline Reeferntraining

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Re: Calcium precipitation
« Reply #27 on: November 05, 2017, 10:27:39 »
I took my kit to Brianís yesterday. Test kits were ok.

Offline Wall_Tank

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Re: Calcium precipitation
« Reply #28 on: November 05, 2017, 11:52:09 »
How do you mix you two part?   What is the calcium chloride to water ratio?

Iíve Not looked into the DOS,  how does it add the two part?  Do the both feed at the same time?  What is the feed rate?   Have you verified the feed rate vs the actual output?

Offline Lazylivin

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Re: Calcium precipitation
« Reply #29 on: November 05, 2017, 12:00:49 »
Adding the pump was more for alkalinity percepation. Regarding strength, your using the powder to mix it yourself at 2.5 cups per gallOn? If yes no strength issue. I would wait another day to see if any change in alk. If not take the co2 scrubbers offline to see if that is issue. If it is then consider bring it back online with less media and only one of them.

 

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