i have a TDs on my unit its coming out at 0ppm

Well I tested my Alk in the 20 gal tub that I have been using for the top off and it was sitting at READY FOR THIS 39.6DKH. Im not a smartie pants ,but that does seem really high doesn't it now I'm really confused. When Doug was testing the water when I was gone it, wouldnt come up past 8 DKH and now once I got home its sky rocketed. All I did was add 4 TSP to the 20 gal tub. Now tell me that it didnt make it sky rocket that much would it.

What is the proper dose for Pickling lime to 1 gal of RO/DI i have checked my tDs and the water is good and 2 days ago the tank was at 14.6 ALK and the CAL was at 450PPm. should I wait to see what happens or try another route with the pickling Lime.

I thought that 1 TSP of PL for 1 gal of RO/DI water was the direction given on the net.

What confuses me is that I thought pickling lime was not as pure a kalk product as, say, pure kalk. So I would have guess the Alk coming off pickling lime to be not as high. ... Who'dda thunk.

Well I tested my RO/DI water and the ALk was 2.6DKH, a took a gal of RO water and added a TSP of Pickling lime and it was over 32Dkh now im lost for words...

I guess the real test now is do the same thing but with kalk instead of pickling lime and see what the resulting alk is...

Different buffer product (Seachem Reef Buffer) but to give an idea how little needed to change alk: 1tsp for 40g will raise pH by 0.1 and alk by 0.5meg/l.

Also check here http://reef.diesyst.com/ it doesn't have pickling lime but limewater solution (saturated).