Re: PH Difficult to control
Van,
I would suggest 4lbs of baking soda. It will raise your Alk up around 115 and perhaps raise your pH again but you can then bring the Acid back down with muriatic. Hopefully your pH will be more controllable.
Your post infers that you are aware the SWG's will most always raise your pH pretty steadily....muriatic will have to be a way of life.....a small price, I think.:)
Re: PH Difficult to control
Actually, this sounds pretty normal for new plaster and a SWG. Once your plaster has fully cured it should get a bit better.
Re: PH Difficult to control
How often will I need to add acid to my new pool with SWCG? Roughly.
Re: PH Difficult to control
It's really all going to depend on what type of surface you have and the quality of the water.
If you have a plaster pool, there's a tendency for the pH to increase almost every day, until the plaster cures. This may take a few months to a year. Again, depending on how much your pH rises, will dictate how much acid you need.
If you have a fiberglass or vinyl pool, the pH rises less and you will have less acid consumption.
Above all, keep your pH in check so that you don't have additional problems down the road.
Re: PH Difficult to control
Quote:
Originally Posted by duraleigh
Van,
I would suggest 4lbs of baking soda. It will raise your Alk up around 115 and perhaps raise your pH again but you can then bring the Acid back down with muriatic. Hopefully your pH will be more controllable.
Your post infers that you are aware the SWG's will most always raise your pH pretty steadily....muriatic will have to be a way of life.....a small price, I think.:)
I added 4lbs. of backing soda last night. I just measured (About 24 hours later) and I am only measuring TA of 100. My PH is off the chart again. I added some acid again (about 30% - 40% of a gallon). I seem to add about a gallon every 2 or three days. That is the only way I can keep the PH in line.
Do you think I may need more backing soda since I am only at 100 now? Perhaps it will take another day or two to register. Maybe since I am adding so much acid it is keeping my TA from raising??
Any help would be apprecaited.
Dan
Re: PH Difficult to control
Quote:
Originally Posted by vanduse1
I added 4lbs. of backing soda last night. I just measured (About 24 hours later) and I am only measuring TA of 100. My PH is off the chart again. I added some acid again (about 30% - 40% of a gallon). I seem to add about a gallon every 2 or three days. That is the only way I can keep the PH in line.
Do you think I may need more backing soda since I am only at 100 now? Perhaps it will take another day or two to register. Maybe since I am adding so much acid it is keeping my TA from raising??
Any help would be apprecaited.
Dan
Hi, Dan,
Yes, Alk will move up and down somewhat as you move your pH. That's ok. Testing after 24 hours of dosing is adequate.
Alk of 100 is fine for now. Go ahead and keep your pH in line as your priority and then adjust your Alk as you need. Maybe let it get back down to 80 or so and then bring it back up around 100 but keep you pH in the range you have been all along.
Rising pH in a new pool is pretty well a given as is rising pH with an SWG. To my knowledge you cannot put in too much acid or baking soda...it's far more important to keep your parameter in the ranges suggested.
I think you'll start to see some reduction in your acid consumption soon but I do not have a good feel for when that will occur.
Re: PH Difficult to control
WHOA..why are you raising your alkalinity to begin with? 95 - 100 ppm is just fine. Heck, when you look at your saturation index, you have perfectly balanced water. Why change it?
