Thanks!
Indubitably. I have been running limewater with an alk stability focus for approx 8 months now and think I have a reasonable understanding of the results. I've slowly been modifying my dosing schedule to reduce the pH drop overnight while still limiting the alk swing to come up with a balance of both preferably. For me, the 1200-1800 hrs window has the lowest alk consumption while still maintaining a rising PH, so I've tried to shift further into the 1800-2400 and 2400-0600.
I think what I am doing or trying to do is similar to your method. I just use a larger vat/reactor and a power head to move the water. I do use a concentrated kalk mix though. It’s a little less that half of what the slurry guys are using. For my sized container, I think they would use somewhere between 12-14 cups of kalk. I am using about 4-5 cups.
I can testify that bringing up the low end of pH has made a difference to my reef. I was dosing alkalinity 24/7 to keep alkalinity stable. Now I dose limewater only during lights out and kept my pH 8.0 during photoperiod and lights out. My alkalinity swings from 8.9dkH right before photoperiod (after last dose of limewater) to 8.0dkH right after photoperiod (before first dose of limewater).
A little dub-T but it gets the job done:
www.menards.com
I want to do 2 tanks in a reverse photoperiod to achieve this; its hard to convince the wife its a necessity though...
Menards has it on the shelf! As does the True Value down the street. I found it near all the canning stuff (look for Ball glass jars).
Same here, too off with Kalk as Randy describes 25+ years, never an overdose. I have a 10gallon reservoir lasts about 13 days max. I do too it off abiut once a week.
Controlled drip rate? Or just tightened a small valve until it's a very slow rate and hope the evap rate is equal or greater than the drip rate? Do you just have a reservoir elevated above sump height and run a small line thru a bulkhead? Any picture available?
I use a Tom's Aqua Lifter pump. The pump itself sits on the lid of the limewater bucket and never really touches the kalk. The suction side of the pump has a combo of rigid and flexible airline tubing that hangs into the bucket ending about an inch off the bottom. The pump is on a light timer and runs a couple minutes every couple of hours.
Nothing fancy. I use a brs 50ml minute doser on a digital timer. I dose 7200 ml daily which is just a bit less than my evap rate. I use a 20g brute container to store kalk.
