ph in the hot tub always seems to rise and I control it, but ran out of 'ph down' late one night and really wanted to get in. was just curious, is it dangerous to your body to sit in a hot tub with a ph of 8.0?
is high pH dangerous?
- Thread starter surfhawaii
- Start date
pH rise due to aeration will be limited to a pH of 8.3. As long as the pH rise was due only to aeration, is is safe to use.
Note that the pH should not be left high as scaling can occur.
Note that the pH should not be left high as scaling can occur.
Many people have tap water higher than that and they bathe in it. But most people don;t sit in the tub for as long as you sit in a hot tub, and they minimize the eye contact. I doubt you harmed yourself any.
I read this: http://poolsolutions.com/gd/hiphpool.html from Ben's website and it seems that, in some specific situations, a higher pH level (8.0) could be beneficial, or at the very least, not harmful. I'm currently experimenting on my pool; I will post results back soon.
I hope you have low CH in your pool or you are inviting scaling by keeping the pH too high.macmini said:
"In some specific situations..." being the operative and very important words above. I would call those situations too few and far between to talk about here.
Are you using the Dichlor-then-bleach method? You indicated before that you started with pool water in your spa so got the CYA that way and then used bleach, so essentially you are on that method. So you should have the TA be lower at around 50 ppm and also use 50 ppm Borates (usually from boric acid) as that should help keep the pH from rising as quickly. If your spa water is fairly isolated, then this should be fairly easy to do. If your spa water mixes too much with your pool water, then it will be hard to have the TA be that different in your spa and your pool, though Borates could be used in both if you wanted to do that (though that's more expensive, given the volume of the pool).
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