Kalkwasser

So, I am thinking that I would like to try dosing with Kalkwasser, instead of my 2-part.  I was wondering is someone using Kalkwasser in the Des Moines area would be willing to sell me a cup or two ??? so that I could try it before purchasing a half gallon from BRS.
Jeanette

 

I read about using pickling lime.  I didn't think the grocery store would have it at this time of year.  I'll check it out.  Thanks!

 

Thanks guys.  I didn't find it at Hyvee, but did find it at Fareway.  I wouldn't even have thought to look there, as I don't frequent that grocery store, but it was close to where I was going today so I checked.
Sone - thanks for offering some in case I didn't find any.
So I'll be trying this out the next couple of days.  I'm anxious to see the results!  Plus it will be another simplification to my maintenance chores not to have to add the two part each day!

 

Thanks for all the input.  Great info.
Right now, I'm planning to mix the kalkwasser in a 5 gal bucket, letting it settle - ?? maybe overnight ??? and then adding it to my ATO resevoir (avoiding anything that might have settled at night).  That should last me for about 4 days.  Based on my current consumption of 2-part, I am estimating that I will need 2 1/2  to 3 tsp of the pickling lime for 5 gallon water.
I've also seen the literature of a PH of 12, but didn't know if that was always, or based on adding 2 tsp of lime per gallon.  Anyone know????
One of the reasons I am planning to try the kalkwasser is that PH is constantly low (around 8.0 if I don't add a PH buffer), and I want to see if the kalkwasser will bring it up to more around 8.2 or 8.3 and keep it there.  I know that 8.0 should be ok, but I've also read that SPS corals have better growth with a PH of @8.2.  And since the few SPS I have, seem to have zero growth, I thought I'd like to see the effect of raising the PH a bit on a more consistant basis.
And now the last question.  How slow is slow?  My tank is 75g with a 20g sump.  I've got the ATO unit from Autotopoff.  I think I read that its sensitivity was 1/8".  So after doing the math, (I'm using the aqualifter rated at 3gal/hour), I think my ATO runs on average 7 times a day for 4 minutes each time, delivering 3 cups of water.  Slow enough????  I've also read about adding a valve to the end of the airline tubing so that you slow the water to a drip instead of a slow stream.  I'm thinking I don't need to go that far. ?????
I also realize that I have the siphon problem with the ATO unit and the aqualifter.  The water level in my resevoir starts out higher than the water level on my sump.  So I have to resolve that first.  I tried making a hole in the tubing, but that wasn't very succesful.  So, now I'm going to try raising the height of the tubing going into the sump, and placing the tubing in either a PVC pipe or a 1/2" flexible tubing.  How have you guys solved that problem??
Thanks everyone for a great discussion!!!