|11-18-2012 10:32 PM|
|chibikaie||Thank you for the link! I've been wondering if I could use potassium bicarbonate in a similar manner, and that answers my question neatly.|
|11-18-2012 02:26 AM|
1.2g K2CO3 in 25 litres of water = 2 dKH
By adding K2CO3 to reach 1 dKH, you also get about 13 PPM of K.
|11-18-2012 12:57 AM|
|Gold Finger||Also, I believe potassium carbonate (K2CO3) adds ~33mg/l K+ along with each 1 degree of hardness added by the CO3 just like K2SO4 does. It works well but you have to understand and want the K+ ratio. lots of extra K seems fine, but plants don't need KH so it's just a pH buffer issue. If you have two or three degrees in your tap I would not bother raising it. Over four degrees can limit some plants. Otherwise K2SO3 is supposed to be a good way to raise KH.|
|11-17-2012 11:31 PM|
If you have a gram scale measure doses and mix into a 5g bucket then test results to establish adjustment values. (what I did)
W/O a scale do leveled mixing spoons 1/2 & 1tsp but realize that compaction and moisture effect the values slightly more than the scale but it's still minor.
|11-17-2012 11:15 PM|
potassium carbonate question
Does anyone have any advice for dosing pottasium carbonate for kh?