Need help mathing with Dynamic Dosing

[BAMatter]

Trying to dial in my Dynamic Dosing- example:
alk 10dkh low and 10.5dkh high
80ml at low point- schedule 24 doses at :03
3ml at high point
Last alk test concluded at 12:28 @ 10.36dkh
System dosed .9ml’s at 1:03

Does this amount seem correct? I kinda figured ballpark since 10.36 is about 75%, then 80/24=3.33 x .75 = 2.5, which is what I figured would be dosed.

I get a bit confused with the amount to dose at high. Is that just if the test is above the high, meaning it figures out anything 10.00-10.49dkh based off percentage of 80ml’s or does it take 80mls and whither down to 3ml split between 24 doses, and remain at 3ml split between doses anything higher than 10.49?

Sorry if confusing, just can’t seem to fine tune this in.

 

[BAMatter]

If you scroll to Real Life Example 1 under Appendix A, it doesn’t make sense as to why it only dosed .9ml’s…

HYDROS Control - How to Create a Dosing Regimen Schedule

Create different Dosing Regimen schedules to add food, trace elements, and minerals to your aquarium.

www.coralvuehydros.com

 

[thom_smith]

Math is based on a percentage of the 10.0 low and 10.5 high alkalinity and 3ml low and 80ml ml high dosages If your alkalinity were 10.0 for the entire day then it'd dose 80ml. If 10.5 then dose 3ml. Easy enough. And these are broken spread across 24 doses. At least per your narrative. Haven't seen the config screenshot. Anywhere in the middle, it is a liner formula

At 10.36 the a 0.9ml dose is correct.

Current Dose = ((1-(0.36/0.5)) * 77) / 24
Current Dose = (28% * 77ml) / 24 doses
Current Dose = 21.56ml / 24 doses
Current Dose = ~0.898ml/dose rounds up to 0.90.

 

[thom_smith]

If you scroll to Real Life Example 1 under Appendix A, it doesn’t make sense as to why it only dosed .9ml’s…

HYDROS Control - How to Create a Dosing Regimen Schedule

Create different Dosing Regimen schedules to add food, trace elements, and minerals to your aquarium.

www.coralvuehydros.com

The example is deceiving AND incorrect because it does a 0ml dose at the low point which is not permitted. Your low point dosage has to meet the minimum run time.

 

[BAMatter]

Math is based on a percentage of the 10.0 low and 10.5 high alkalinity and 3ml low and 80ml ml high dosages If your alkalinity were 10.0 for the entire day then it'd dose 80ml. If 10.5 then dose 3ml. Easy enough. And these are broken spread across 24 doses. At least per your narrative. Haven't seen the config screenshot. Anywhere in the middle, it is a liner formula

At 10.36 the a 0.9ml dose is correct.

Current Dose = ((1-(0.36/0.5)) * 77) / 24
Current Dose = (28% * 77ml) / 24
Current Dose = 21.56ml / 24
Current Dose = ~0.898 rounds up to 0.90.

Where are you getting the *77 in the equation from so I understand your math? 80-3? Here’s a screen shot…

 

[BAMatter]

@thom_smith thank you btw- definitely cleared it up. Makes sense now, just had a hard time wrapping my head around it. Really need to add a high number for the low compared to what the system actually requires it seems. May take me a bit to dial this in.

 

[thom_smith]

@thom_smith thank you btw- definitely cleared it up. Makes sense now, just had a hard time wrapping my head around it. Really need to add a high number for the low compared to what the system actually requires it seems. May take me a bit to dial this in.

What are you dosing? I use a formula from Randy Holmes-Farley I found on reef2reef. 1.25% of total volume in saturated lime water will raise alkalinity by 1.4dkh, calcium by 10ppm and pH by 0.66. Do the math to reduce that formula from 1.4dkh to 0.5dkh and you've got a pretty good reference point.

 

[BAMatter]

What are you dosing? I use a formula from Randy Holmes-Farley I found on reef2reef. 1.25% of total volume in saturated lime water will raise alkalinity by 1.4dkh, calcium by 10ppm and pH by 0.66. Do the math to reduce that formula from 1.4dkh to 0.5dkh and you've got a pretty good reference point.

I’m dosing kalk 3000mls of kalk overnight, and ESV B-ionic 2 part to level the swing out. Requires me to keep alk higher but I want to keep alk a bit steadier than what my chart was looking like with just dosing kalk at night

 

[BAMatter]

What are you dosing? I use a formula from Randy Holmes-Farley I found on reef2reef. 1.25% of total volume in saturated lime water will raise alkalinity by 1.4dkh, calcium by 10ppm and pH by 0.66. Do the math to reduce that formula from 1.4dkh to 0.5dkh and you've got a pretty good reference point.

I need to enter 320 in to get about 11ml’s to dose on the hour if alk tests at 10.08dkh, is this correct according to your equation?