pH of new water
 

I think I saw this here before, but I can't find it.
What does everyone get for a pH reading with freshly mixed salt water?
Kinda like a poll without the cool little java script buttons ;)

pH of new water
 

8-8.1 [img]smile.gif[/img]

pH of new water
 

Stephane, which salt are you using? I use I/O and my pH is 7.9 (after heavy aeration)

pH of new water
 

Same salt as you :confused: I have a water change jug ready but my pinpoint baterie is low bat. I have put the baterie for recharge and I will tell you the reading tomorow with a new bateri and calibrate the pinpoint,

pH of new water
 

thanks

pH of new water
 

I read 7.9 with my pinpoint using I/O as well. [img]smile.gif[/img]

pH of new water
 

According to an article by Craig Bingman, it "should" mix to 8.35 :confused:

pH of new water
 

There has to be more people here that use salt water and measure their pH!! Anybody???

pH of new water
 

8.0 Kent salt. This was in my log book, probably the only time I ever tested it immediately after mix, (7.7) and then after aeration (powerful pump) at 15 min, and again at 24 hours (8.0).

pH of new water
 

Whats the salinity of your makeup water?

pH of new water
 

Ok I just clean the probe who was looking like a piece of live rock calibrate (even after +3month the 4 years old probe is right on target)it and the value is 8.09 at 1.025 salinity

The difference in each is the make up water you take, I utilize ro/di water with a value of 0 tds
so this water is very easy to change PH. One drop of vinegar in the bucket will make 25 gallon of water acid and a pinch of backing soda will turned back hight PH

IMO That way I probably get the real value IO suppose to be :D

pH of new water
 

<font size="2" face="Verdana, Helvetica, sans-serif">It's 1.026. The RO/DI water is about 3 ppm TDS.

pH of new water
 

3ppm TDS from the DI Brad ? I was having problems at 2ppm TDS and found out I should change it at 1ppm. I tested the membrane, which was okay at 98%, so I changed out the DI.

Does that stuff affect the pH as well ?

pH of new water
 

[quote]Originally posted by Reef_Raf:

Quote:

It's 1.026. The RO/DI water is about 3 ppm TDS.

<font size="2" face="Verdana, Helvetica, sans-serif">hmm I get 0 ppm TDS out of my DI Brad, if I skip the DI and go strait from the RO it is only 1ppm.

Steve

pH of new water
 

Only use RO and IO my make up water runs at 1.023 and ph at 8.1..

pH of new water
 

I've only measured newly made up water a few times and I always got measurements in the low 8s. I was going to say, maybe it has to do with water in the Northwest but Iowa and Calgary sort of throws that for a loop.

pH of new water
 

<font size="2" face="Verdana, Helvetica, sans-serif">I have not very big knowlege to backup this Troy
but if the TDS of water is 0 ppm we should have all the same PH at the end with any kind of Tap water

but if we dont have 0 probably then the mineral still in the water could play with tath PH in my therory :D

[ 28 September 2002, 07:46: Message edited by: stephane ]

pH of new water
 

[quote]Originally posted by StirCrazy:
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Reef_Raf:

Quote:

It's 1.026. The RO/DI water is about 3 ppm TDS.

<font size="2" face="Verdana, Helvetica, sans-serif">hmm I get 0 ppm TDS out of my DI Brad, if I skip the DI and go strait from the RO it is only 1ppm.

Steve</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">OK, I just checked a new sample and it's 0ppm. I originally checked the water in the tank I mix it in and I guess the dried residue from the last batch of water affected the reading.

pH of new water
 

Very strange brad :confused:

Wich kind of PH test have you take?
if it is a PH meter did you have calibrate it?
maybe there someting more than only the TDS who
play with the PH

pH of new water
 

Stephane, I use a meter that is calibrated and tested on a known standard. I wish I just got bad readings, but unfortunately they're accurate. I'm told that the amount of CO2 in the air at the time the salt is added can affect pH.

pH of new water
 

If you have a few people over you will notice a drop in PH just by people breathing the same air as your tank or makeup water is exposed to. Try opening a window to get some fresh air in the room your doing your tests in. Just a thought.

pH of new water
 

<font size="2" face="Verdana, Helvetica, sans-serif">That's completely true Stephane, I overlooked that :confused: . I think the variable lies in the 0ppm of the purified water and the test results.

pH of new water
 

<font size="2" face="Verdana, Helvetica, sans-serif">I have heard of this before but was not aware that it could made that difference on the PH very interesting I should do some more testing with the open window

pH of new water
 

Yes, people in the same room can affect pH by up to 0.3 points. I have done all my testing though with all windows and doors open.