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https://www.troublefreepool.com/threads/new-borate-drop-test-at-piscines-apollo-vs-test-strip.33440/page-6 Post #104 The borate test strips are hard to read as the color differences are subtle.

https://www.troublefreepool.com/threads/new-borate-drop-test-at-piscines-apollo-vs-test-strip.33440/page-6 Post #104

If you use municipal water then test results are here: https://wauconda-il.gov/DocumentCenter/View/424/Water-Quality-Report---2017-CCR Looks like your copper is <1.3 ppm. Since staining may occur at 0.3ppm, that's not accurate enough to evaluate your fill water. The results show 1.06 as 90th...

I used KAR labs to test my water. It was expensive, and if I remember right over $100. But I got a lot of things tested, minerals, hardness, heavy metals, pH, coliforms, etc. It is well water. If you get your water from a municipal source, you might find the results of your water testing on...

How much copper is in your fill water?

With sudden FC reduction and low phosphates, there is probably not much of an algae bloom but bacteria still might thrive. 1st step is sodium sulfite to quickly drop the FC. 2nd step sounds like inoculation with appropriate bacteria and wait til CYA consumed. Add no antimicrobials during the...

My cover is a mesh cover purchased from Amazon "Yard Guard Deck Lock Rectangle Mesh Inground Swimming Pool Safety Cover." During the storm, the cover bounced like a trampoline. It is noted that my pool is partially buried and the deck will allow some wind to get up under it. This would not be...

My pool came through Florence intact (exept for pool fence). Here's what I did: Drained water down about 8" Took pool to shock the morning of the hurricane, Covered with mesh winter cover (against the advice of some) During the storm - 15+ inches of rain, 48 hours of sustained 30-40 wind...

Walmart online has CaCl2 pellets as snow melt.

It's interesting that the hypochlorous acid buffer likely has the most suitable pKa but is not a significant buffer due to low concentrations. I'd like to take pool water and titrate over a wide pH range to see where all the buffered ranges are in real pool conditions. If I had a pH meter, I'd...

I agree. There are several buffer systems at play, hypochlorous acid, bicarbonate/carbonate, borate (in my case), etc. You must have chlorine, so you can't change the hypochlorous buffer much, you can allow your TA to go down ( decreasing the bicarbonate buffer), and borates are completely...

When I referred to the equilibrium, I was referring to the dissolved CO2 in the water. The bicarbonate buffer system is the same system in our bodies. CO2(g) + H20 <--> H3O+ + HCO3- Le Chatelier's principle tells us that if CO2 is removed (offgasses) then everything shifts to the left...

Re: Stenner liquid chlorine pump - How to choose and install Richard's 3rd paragraph: "When the hypochlorous acid gets used up by oxidizing an organic or ammonia or killing a pathogen (bacteria, virus, algae), it gets converted back to chloride ion. The oxidation produces carbon dioxide...

Yes. Higher concentrations have a shorter half life. I've seen some pictures on here of buried bleach plastic barrels. Seems like it could be cooler and darker (if covered). With 6% bleach I don't even worry about the dates.

Our local Walmart has 6% "cleaning bleach" for $1.77/gallon. I get with an asst manager and order what I need so that I don't have to shop multiple stores.

At times a pool may evaporate more. Plants have small pores (stomata) which are able to open/close to affect the rate at which they transpire gases. Closing these stomata slows metabolism of the plant since gases needed such as CO2 and H20 are limited. Stomata can close to conserve water...