undissolved/unused kwalkwasser at bottom of ato

[SeeFu]

I've got a bit of undissolved kalkwasser on the bottom of my ato. If were to just refill the ato w/o adding new kalkwasser and give the container a mix, would that undissolved kalkwasser at the bottom of the container mix into the new water or will it just settle at the bottom again?

 

[Randy Holmes-Farley]

Some is probably undissolved calcium hydroxide and has the potential to dissolve into the new batch.

Some is calcium carbonate and magnesium hydroxide, and it will not dissolve.

 

[Webslinger]

Mix it all together at fillup.I dump out the undissolved a couple times a year.

 

[FishTruck]

How does one know when the calcium hydroxide is spent?

My avast kalk stirrer directions mention changing out the calcium hydroxide every month - but I'd rather not if I don't have to (lazy). I still have two inches of white stuff stirring at the bottom.

 

[SeeFu]

i guess i should prob clean mine out. its been almost 1/2 a year.

 

[Randy Holmes-Farley]

How does one know when the calcium hydroxide is spent?

My avast kalk stirrer directions mention changing out the calcium hydroxide every month - but I'd rather not if I don't have to (lazy). I still have two inches of white stuff stirring at the bottom.

One way is to monitor the effluent of a rector. Conductivity is the best way, but alk testing can work if it is totally clear.