You're right. Thanks. After checking with the manufacturer, they're not using trisodium phoshate. They're using sodium tripolyphosphate and there's 50 pounds in 275 gallons. Are you able to do that math?
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Yes, or you could use the math I already posted.
1. add 1.88g of the Trisodium Phosphate to 1 liter of water,
2. Adding 1 mL per 100 L of tank water will boost phosphate by 0.01 ppm (so add 1.52 mL).
Hi randy,Yes, or you could use the math I already posted.
1. add 1.88g of the Trisodium Phosphate to 1 liter of water,
2. Adding 1 mL per 100 L of tank water will boost phosphate by 0.01 ppm (so add 1.52 mL).
Hi randy,
lim just about to raise my phosphate from zero, can I go straight to 0.05 or should it be done gradually?
many thanks
Hi randy,
lim just about to raise my phosphate from zero, can I go straight to 0.05 or should it be done gradually?
many thanks
I don't have a scale. How can I convert TSP from grams to tsp to produce a dosing fluid?
As an approximation, 1 mL bulk powder weighs about 1 g. That's close enough for our purposes here.
As an approximation, 1 mL bulk powder weighs about 1 g. That's close enough for our purposes here.
I have added 0.16 ppm over the course of the week and still read "0" on my Hanna ULR after 3 separate tests 2-12 hours after dosing. Are biological and sorption processes happening that are stripping the phosphates so quickly?
Yes, that's pretty much expected.
I'd get food grade sodium phosphate. Amazon carries it.
Like this one:
Just to clarify, that stock solution is 1090 ppm phosphate (1.88 x 0.58 g/L or 1.09 g/L or 1,090 mg/L).
Adding 1 ml per liter of tank water will boost phosphate by 1 mg/L.
Adding 1 mL per 100 L of tank water will boost phosphate by 0.01 ppm.
I know the post is old Randy but does trisodium phosphate solution lose potency over time? Or is my hanna having a problem reading it? My reagents are good until 2022.
I mixed some the other day and it seemed to do the trick but after a few months i only ever read 0 on my hanna and when i put a little in the vial directly it doesnt turn bkue like it used to. This led me to sprinkle a tiny bit of TSP crystal itslef into the vial and BOOM blue.
Has my mixture expired? Lol
If it is the only think in the solution, it won't go bad.
Perhaps demand in the tank has risen.