Ok thanks carl. Pool was just installed 3 weeks ago, the installers put 1 gallon of Champion pool shock in it X2 the first week. Thursday of last week o put 1/2 gallon of tranchem muriatic acid in it. Should I put the rest in tonight?
Ok thanks carl. Pool was just installed 3 weeks ago, the installers put 1 gallon of Champion pool shock in it X2 the first week. Thursday of last week o put 1/2 gallon of tranchem muriatic acid in it. Should I put the rest in tonight?
I don't know what Champion pool shock is, but I'm guessing it's calcium hypochlorite--Cal-hypo, which tends to push pH up, since your pH is high.
However, if it was di-chlor, that tends to be a bit acidic (which you need) and adds CYA, which you also need.
Is Tranchem a brand of Muriatic Acid? Regular, ordinary Muriatic acid is what you need, not the "green" or fumeless. Personally, I'd fill a 5 gallon bucket with pool water most of the way, add the acid to that (SLOWLY!), and then add that to the pool. Wear gloves, eye protection, long clothes and do NOT breath the fumes!
Can you find out what the Champion stuff is? ("Shock" is misused by pool chem companies to hide the ingredients and make it sound "special". It's a verb meaning to raise your pool's chlorine to high levels, not a noun. What they call "shock" is merely chlorine, usually Cal-Hypo, Di-chlor or extra-strength bleach--"Liquid Shock")
Carl
I will look at the champion brand shock when I get home tonight.Transchem is the brand of the muriatic acid bought at the hardware store. It is Judy a regular muriatic acid.
The champion brand "pool" shock list the ingredients as:
12.5% sodium hypochlorite
Inert ingredients 87.5%
That is basically just strong bleach. Regular household bleach that is sold these days is typically 8.25% sodium hypochlorite. So, what you have is perfectly fine to use. However, it may not truly be 12.5%. Many times, the higher concentrations of sodium hypochlorite degrade fairly quickly especially if they are not stored in cool conditions.
I put another half gallon of muriatic acid in the night before last, retested last night. Showed improvements but still above 8 so I will do another 1/2 gallon tonight and retest.
If the Champion costs more than 1.5x 8.25% per gallon, then it's a bad deal. If it costs less than 1.5x per gallon, it's a good deal.
For example, my local CostCo sells 3 121oz jugs for $9--which is about $3.17/gallon (gallon=128oz). But I but 5 gallons of 12.5% for $19 which is $3.80/gallon. As long as the 12.5% is below $5.55, it's a better deal than the 3 jugs from Costco.
Carl
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