Recent content by smallpooldad

chem geek, Thank you for the reply, well that seems to settle why they possibly use zinc chloride. One quick question, for those of us who have high silica in our water over 50 ppm, such as the island of Oahu, the Central Valley of California, and many parts of Texas, would there be any...

chem geek, My apologies for wasting your time I should have more properly read the chemical notation for aluminum. However I did find these and they might explain why it is being used: https://www.lubrizol.com/DispersantsWaterTreatment/TechPapers/Use-of-Zinc-for-Corrosion-Control.pdf...

chem geek, The link below may solve the issue as to why Natural Chemistry is now using Zinc Chloride in their new formula for their Extra Strength Phosphate Remover, previously call Commercial Strength Phosphate Remover. It seems that Zinc Chloride mixed with Alum produces Aluminum Chloride...

chem geek, Thank you for the reply. Question: As Natural Chemistry's "PHOSfree Commercial Strength", new formula is now essentially a slightly stronger Phosphate remover, once the phosphates are gone and then controlled weekly by the Acrylic Acid Copolymer chemical, presently supplied by...

chem geek, Below are some links to Alum versus Poly Aluminum Chloride. It seems Alum can be substituted for Poly Aluminum Chloride. It seems that Alum is slightly less effective than Poly Aluminum Chloride in removing metals and silica but not by a great percentage. If the dose is increased...

Chem geek, Thank you for the quick reply. Well Zinc Chloride remains a mystery. Will the Baquacil oxidizer which have as you wrote metal chelating agents help to remove existing iron, and other metals during the HP/AA treatment? I will try and do some research on Alum versus Poly Aluminum...

JamesW, I am not sure if the word dissolve is appropriate, chem geek might describe it differently. But yes a larger amount than usual amount of Hydrogen Peroxide was used and did break up the silicate scale into a large sandy mess which was filtered out, backwashed out, and vacuumed out of...

chem geek, Thank you for answering JamesW's questions for me. You are far more capable and knowledgeable than I at explaining these processes, and it was a very clear answer. The only thing I do different from your explanation is to add the HP 2 hours prior to the AA. I am not sure if that...

chem geek, Thank you for the reply. Might this help regarding Zinc Chloride's purpose? http://www.zaclon.com/pdf/zinc_chloride_sol_and_solid_data.pdf

hdjii and chem geek, A few questions and then some observations, and finally a few more questions. Questions: It is sad to note that Natural Chemistry changed the formula for "PHOSfree Commercial Strength", it seems they also are changing the name to "PhosFree Extra Strength", as I doubt any...

Chemgeek, Thank you for the advice. And hdjii, Below is the Method I would now use if I were to repeat it. I did not cover phosphate testing but it is a good idea to do before the method and interesting after the second Phosfree removal at the end. Nor did I cover TDS but I will insert...

JasonLion, I think it is a matter of agreeing to disagree. My personal experience with both methods is different, a prior acid wash did not remove the scale some years back, but treatments with HP and AA did. The acid wash did mark up the walls however despite being done correctly, so...

hdjii, Thank you for your very complete reply. It appears from the linked two papers below, from the US Geological Survey, that you are possibly correct that Manatee County water may contain relatively high levels of both Silica, at around 40 to 60 ppm, and iron, but this varies well to well...

hdjii, Would be happy to help, with a brief as possible explanation of the treatment/method. Which might still be a little lengthy. It might take a few days before I can post it. In the meanwhile a few questions: 1. What chlorination method do you use, what is the size of your pump, and...

Chemgeek, Thank you for the quick reply and link to the paper. It was interesting to note in that paper link that they to came to the conclusion that the amount of copolymer to be used will vary with the iron, and other contaminant loads in the water. So 4 oz or 5 oz a week is really only a...