triton results vs. my testing difference major/minor?

[SeeFu]

so i just got my triton results and its pretty different from what i test myself. these are my results

calcium
trident = 415
red sea = 415
triton = 489

mag
trident = 1455
red sea = 1460
triton = 1616

phosphate
hanna = .07
triton = .11


so since i have 2 manual test for cal and mag that are so close should i disregard the triton test? the triton test took much longer than anticipated so i wonder if that affects the results. i sent the water sample in and the US facility ended up sending it to Germany for testing. It took about 9 days to get test results back.

 

[blaxsun]

That is quite a difference.

 

[Dan_P]

so i just got my triton results and its pretty different from what i test myself. these are my results

calcium
trident = 415
red sea = 415
triton = 489

mag
trident = 1455
red sea = 1460
triton = 1616

phosphate
hanna = .07
triton = .11


so since i have 2 manual test for cal and mag that are so close should i disregard the triton test? the triton test took much longer than anticipated so i wonder if that affects the results. i sent the water sample in and the US facility ended up sending it to Germany for testing. It took about 9 days to get test results back.

ICP measurements may not be all that accurate. Stick with your local measurement.

 

[Ledo]

so i just got my triton results and its pretty different from what i test myself. these are my results

calcium
trident = 415
red sea = 415
triton = 489

mag
trident = 1455
red sea = 1460
triton = 1616

phosphate
hanna = .07
triton = .11


so since i have 2 manual test for cal and mag that are so close should i disregard the triton test? the triton test took much longer than anticipated so i wonder if that affects the results. i sent the water sample in and the US facility ended up sending it to Germany for testing. It took about 9 days to get test results back.

How does triton measure phosphate?