calcium hydroxide
- Thread starter Richard
- Start date
TheUltimateNoob
TheUltimateNoob
hey richard,
i'm also looking for some calcium hydroxide. do you think i could get in on some of this too if you're not going to take it all? if you are going to take it all, that's fine too. thanks.
i'm also looking for some calcium hydroxide. do you think i could get in on some of this too if you're not going to take it all? if you are going to take it all, that's fine too. thanks.
TheUltimateNoob
TheUltimateNoob
what's dowflake?
Scuba_Dave
Non-member
Dowflake is the 40-50lb bags of "Calcium" used for melting snow. Randy did testing & determined that it could be used as a supplement for our tanks. This was part of the presentation at the meeting
http://www.dow.com/calcium/product/dowflake.htm
Most places did ship it back after winter ended
http://www.dow.com/calcium/product/dowflake.htm
Most places did ship it back after winter ended
marco67
Smart is.. a box of rocks
Serious suggestion......
You guys all know what one cupful of this stuff cost me last February.
make sure your dosing system is full proof. In my case it was just a slip of the pick up tube cost me everything.
What I've learned/done to prevent it from happening again: I no longer let my pick up tube dangle into the top off barrel, it's now fixed at a height that can never suck the sludge from the bottom. Also my peristaltic pump is plugged into a PH controller and a float switch so it can run only if the sump is low and then, only if PH is below 8.5.
You guys all know what one cupful of this stuff cost me last February.
make sure your dosing system is full proof. In my case it was just a slip of the pick up tube cost me everything.
What I've learned/done to prevent it from happening again: I no longer let my pick up tube dangle into the top off barrel, it's now fixed at a height that can never suck the sludge from the bottom. Also my peristaltic pump is plugged into a PH controller and a float switch so it can run only if the sump is low and then, only if PH is below 8.5.
karl wagner
salinate me!
Make sure it's fool proof too!!
"Everytime I try to make something idiot-proof, they just go ahead and make better idiots!!!"
"Everytime I try to make something idiot-proof, they just go ahead and make better idiots!!!"
RobboT
--
Seriously though Marc is 100% right about being careful with this stuff. It can kill your tank, make sure that your drip/feed line can't hit the sludge. The pH controller and float switch are superb ideas as well.
For those of you who are new to this . . .
CaO or CaOH make a solution with a pH of about 11.0 or 12.0. It doesnt take a whole lot of pH 11.0 liquid to run a typical system well up into the 9.0 range or higher. If the sludge gets in the tank and hits anything it will burn it, not heat burn, pH burn(although there is a lot of heat generated when you mix it up) . . . if you dont believe me put some CaO or CaOH on your arm and drip a little water on it.
DO NOT REALLY DO THAT!!!!!! sooner or later it will happen by accident and you'll know what I mean.
For those of you who are new to this . . .
CaO or CaOH make a solution with a pH of about 11.0 or 12.0. It doesnt take a whole lot of pH 11.0 liquid to run a typical system well up into the 9.0 range or higher. If the sludge gets in the tank and hits anything it will burn it, not heat burn, pH burn(although there is a lot of heat generated when you mix it up) . . . if you dont believe me put some CaO or CaOH on your arm and drip a little water on it.
DO NOT REALLY DO THAT!!!!!! sooner or later it will happen by accident and you'll know what I mean.
Scuba_Dave
Non-member
I'm still doing "manual" top off for kalk. Only a specific amount allowed to drip into tank, or added 1st thing in the am
and even with manual top off I had a brain cramp & refilled jug 3-4x one time, spiked tank up to 9.3, quickly came down to 8.6...but what a scare
and even with manual top off I had a brain cramp & refilled jug 3-4x one time, spiked tank up to 9.3, quickly came down to 8.6...but what a scare
karl wagner
salinate me!
dowflake is CACl2, and is not a balanced supplement.
It is not interchangeable with CAO or Ca(OH)2.
It can be dosed along with a preparation of Baking Soda or Washing soda to make a 2 part additive.
Hope this helps.
It is not interchangeable with CAO or Ca(OH)2.
It can be dosed along with a preparation of Baking Soda or Washing soda to make a 2 part additive.
Hope this helps.
RobboT
--
Ahhh good catch Karl, I ddidnt even realize what the hell you were talking about until I went back and reread the thread.
Please do not confuse DowFlake (Calcium Chloride) which adds only Calcium to the tank with Quicklime or Lime (Calcium Oxide and Calcium Hydroxide) which "adds" (for lack of a better term) both Calcium and alkalinity.
Please do not confuse DowFlake (Calcium Chloride) which adds only Calcium to the tank with Quicklime or Lime (Calcium Oxide and Calcium Hydroxide) which "adds" (for lack of a better term) both Calcium and alkalinity.
