The best way to add calcium

[Doug]

Kalk can be added with just a jug or something more complicated. Just use a large jug type container. Throw in a spoon of kalk, fill with ro water, mix it up for awile and then let it settle, until the residue settles on the bottom.

You can drill a hole in it, about an inch up from the bottom, { so the residue does not drip}, and silicon an airline valve in. Just sit the jug over your tank or sump and turn the valve on to get a decent drip. Best to add kalk at night, when ph is lower. Kalk should be added slowly, whatever method is used, as it has a ph of 12.

I have dripped like this for many years, from 50g tanks to my current 225. It just replaces the evaporated water.

Of course there are other ways, like float switches and dosing pumps and kalk reactors and even garbage cans full of kalk.

By the way, kalk is an excellent way to maintain levels, but its hard to raise them, unless there is a large amount of evaporation. Best to use something like Kent Turbo calcium, to raise it up first, if its low. Or if both calcium and alk are low, it can be raised by using equal parts of a 2-part.