Cool tool! I am gonna keep this one for when I need it.
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A little update. Friday night I mixed up 15 gallons of salt water and added 8 mL of Muriatic acid. This dropped the dkh from 10.4 to 8.3. Saturday morning I did a water change with no side effects at all. If I would've done this without adding the acid my SPS coral would have shown signs of burnt tips from the alk swing.
I did not check the pH in the freshly mixed saltwater. I aerated the water overnight while it was mixing. It dropped the PH in my tank about .03 apex probe. I do dose 4ml of BRS alk 8 times day so depending on when that went off that could've affected the pH a little. Worked perfect for me. Thanks!Glad that worked for you.
Did you check the pH in the new water?
My point was not to get hung up on commercial terms like Muriatic acid (Bleach is another). Its just an over-the-counter HCL/water solution (not lab grade). Like I said previously, it's the last thing I would do, however if smh254 has a need, and follows Randy's procedure, then I'm sure its ok.
Does that make sense?
I wouldn't. if you make an error in pails of salt its an inconvenience... if you make that same error in your display you could easily crash the tank. from what I've been reading it also brings your ph down fairly aggressively so you would likely mix saltwater overnight with a airstone or pump and allow that ph to rise again.Is it safe to dose muratic directly to the tAnk a drop or two at a time? (1/2 ml or so over the course of a day to the sump area).
I'm having a b of a time getting my alk down even with low alk mix water changes.
Oh and don't forget to aerate the water really well at least overnight before using. pH will drop and you need to scrub of the CO2 created from the HCl addition.
I found this old thread which provides some answers for a problem I have, but I cannot work out where the number of 11,000 mEq/l for HCl comes from.
I guess I'm stuck going from the MW of HCl of 36.46 g/mol, or am I looking in the wrong direction.
how much muriatic acid did you use to lower alkalinityI'm curious as to why you say don't do it. I did it for the first time a week ago and it worked perfectly.
Mine fluctuates from 2.5-5ml per 25 gallons. This brings my IO regular salt down to about 8 dKH. I modified a return pump to help drive the ph up. I have another female union with a vinyl hose attached to help with the WCs. This way I can use the same pump for mixing and the WC.how much muriatic acid did you use to lower alkalinity