Mixing RO and Tap Water ??'s

[Coursair]

Did a 7 gallon pwc using RO water. Initial pH test reads 8.0 rather than 8.2/8.3. That's good. I was hoping using all RO this time wouldn't change the pH too drastically. I'll test the water tomorrow evening and see how the pH reads.

Question- does RO need degassing time like tap water for reading pH?

It should not need any degassing time AFAIK.

 

[Bearchumjs]

Thanks.

 

[Bearchumjs]

I'm going to do another 7 gallon pwc tonight using RO. I tested my water the other day 24 hours after I did the first 7 gallo. Pwc using RO and my pH was 8.2. Hopefully after tonight's change it will be closer to 8.0 in 24 hours.

 

[Bearchumjs]

Going to test my pH today and do an 8 gal pec using more RO.

 

[Bearchumjs]

PH was 8.0. Did 8 gallon pwc using RO water. Tested pH and it was 7.8. I'll test again in a few days but it looks like this is working. Slowly bringing down the pH!

 

[Bearchumjs]

PH last night was 8.2. I don't get it. Nitrates were 20 ppm or so which is lower than 40/80... Not sure why the pH is still so high...

 

[Bearchumjs]

PH last night was 8.2. I don't get it. Nitrates were 20 ppm or so which is lower than 40/80... Not sure why the pH is still so high...

Ph was 7.6-7.8 today! Hooray! I think one more pwc using RO and then I'll begin doing the water changes using RO and tap.

 

[Coursair]

Ph was 7.6-7.8 today! Hooray! I think one more pwc using RO and then I'll begin doing the water changes using RO and tap.

The main thing is to keep it stable. So try to find that magic mix and stick to it. 50/50 or 60/40
Etc...

 

[Bearchumjs]

The main thing is to keep it stable. So try to find that magic mix and stick to it. 50/50 or 60/40
Etc...

My magic mix will be 75/25. Once I get my pH where I want it I will begin doing the mix when I do my pwc's.