Tag Archives: ph,

Pool Products General

Pool Chemicals Baking Soda

pool chemicals baking soda
I need some help with the pool chemicals.?

What do I use to lower the ph level in the pool?
What do I use to raise the ph level?

I have a store bought stabilizer?
I have soda ash?
I have baking soda?
I have Muratec acid?

To reduce the ph level you use sodium bi-sulphate also called ph down
To increase the ph level you use a product called ph up or soda ash

Stabilizer is used to protect your chlorine from being ineffective especially under the suns rays
Baking Soda is used to raise the alkalinity of your water which should be around 70-120
Muriatic acid can be used to lower alkalinity if pillared otherwise it reduces ph
Soda Ash is a water softener / ph increaser

Hope that helps. Personally i prefer to use powdered chemicals for reducing ph as it is safer to store then muriatic
acid since it eats thru its container in time.

Like the other responder said add chemicals in small amounts especially with regards to ph as you will end up bouncing around a lot otherwise

Chlorine explosion

Pool Products General

Pool Chemicals Low Alkalinity

[mage lang=”en|fr|de|en” source=”flickr”]pool chemicals low alkalinity[/mage]
High Total Alkalinity and Low Ph problem?

My TA was reading at 200 and my ph at 7.8. The pool shop told me to add acid to decrease my TA. I did this last night (16hrs ago) and let the pump run for 4 hours. This morning I have tested the water and the ph is down to 7.0 and the TA down to only 180. Do I need to give it longer to have affect on my TA? Should I be worried that my ph is so low? Have only just installed my pool this year, so am new to all this chemical stuff! Please help

Your ph at 7.0 right now isn’t an issue. It’s only a tad out of whack. That TA still needs to come down though. Where did you put that acid in the pool? You ought to have put it in the deep end and away from any skimmer or pool return and if you have a main drain suction, it should be off. That’s called “slugging”. The acid drops to the bottom of the hopper and changes your TA with little effect on your Ph.
On the flip side, putting acid in the shallow end or in front of a pool return will drop Ph and do next to nothing to your TA since the acid gets diluted right in front of the jet.
The time frame of 16 hours, if you added enough acid ( I wouldn’t have added more than 1 gallon at a time for a say, 16×32 pool) in the right place in the pool (deep end) would have dropped the TA to probably just above ideal at 130-140. Something you did wasn’t right. Either the dosage or the location. Why aren’t you running your pump for more than 4 hours per day? The equipment for any pool is sized that it has a turnover rate of 1.5. That means that in 24 hours, 1.5 times the pool volume gets filtered and sanitized. Less than 18 means that you’ll eventually have a water clarity issue since your turnover then is only 1 at 18 hours run.

FROG Pool and Spa Test Strips

Pool Products General

Pool Chemicals High Alkalinity

pool chemicals high alkalinity
Help my pool wont hold chlorine!?

My pool won’t hold chlorine. Here is the back story. Our pollen was tremendous and it sat in the pool for a long while. We finally got it out and we got our chemicals all worked out. But the pool has remained cloudy and we can’t hold chemicals. Just to be safe we put in Metal Free today…but to no avail it would seem. What can we do??? We are running out of ideas. Ok…here are the numbers

Free Chlorine .5 (this is after putting TONS of chlorine and being high on chlorine yesterday)
Total Chlorine .5
ph 7.4
Hardness 100ppm
Alkalinity 85 ppm
Cyanuric Acid 150ppm
Total Dissolved Solids 500ppm….

Please help. I need someone who really understands to respond. Getting desperate. It is a fiberglass pool with 12,400 gallons.

Numbers are ok except for the Cl. There must be organics still in the pool eating up what chlorine you add. That or you’re shocking during the day. Try shocking at dusk. You’ll get more bang for your buck since there are no UV rays from the sun knocking out your chlorine.
It’s organic load or a filter issue. One of the two or a combination of both.

IL TRIO DINAMICO ep 4