I had an employee really mess up a fiberglass pool with trichlor. The PH was so low, i couldnt really measure it, maybe lower than 4. I added a TON of soda ash, maybe 10 pounds to this little 12,000 gal fiberglass pool, and the whole pool turned a magenta color. Customer wasnt happy with that. It ended up being some copper a previous pool guy added, but it was my responsibility at that point. It cost me alot of money fixing it with metal remover :(
It's always a safe precaution to add a sequestering agent (stain and scale preventative) before adjusting pH upward by more than a bit. As pH rises it's ability to keep dissolved solids in solution declines, and stains result. I also have shocked pools not realizing copper algaecide had been added. The effect of the shock falling though the water forms a column of high pH water, and the copper falls out of solution. These type stains usually come up on their own, but need help sometimes. Adding stain preventative as the water gets colder is a good idea. Temperature is another factor in the water's ability to keep solids in solution. Lower temperatures hold less solids. I explain to people that it's like adding sugar to hot tea, vs iced tea. The hot dissolves the sugar instantly, in the iced tea you'll likely see sugar at the bottom of the glass.
I had an employee really mess up a fiberglass pool with trichlor. The PH was so low, i couldnt really measure it, maybe lower than 4. I added a TON of soda ash, maybe 10 pounds to this little 12,000 gal fiberglass pool, and the whole pool turned a magenta color. Customer wasnt happy with that. It ended up being some copper a previous pool guy added, but it was my responsibility at that point. It cost me alot of money fixing it with metal remover :(
It's always a safe precaution to add a sequestering agent (stain and scale preventative) before adjusting pH upward by more than a bit. As pH rises it's ability to keep dissolved solids in solution declines, and stains result.
I also have shocked pools not realizing copper algaecide had been added. The effect of the shock falling though the water forms a column of high pH water, and the copper falls out of solution. These type stains usually come up on their own, but need help sometimes.
Adding stain preventative as the water gets colder is a good idea. Temperature is another factor in the water's ability to keep solids in solution. Lower temperatures hold less solids.
I explain to people that it's like adding sugar to hot tea, vs iced tea. The hot dissolves the sugar instantly, in the iced tea you'll likely see sugar at the bottom of the glass.
@@mayorb3366 awesome, i will remember that! Thankyou
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