is D-D test kit for Po4 , kh and no3 accurate ?

[chercm]

anyone can advice ?

[MARINECRITTERS]

form what i have heard yes, but you can't beat salfiert

[chercm]

Hanna have been giving inconsistent readings

[bertoni]

The Hach PO-19 test kit has been evaluated, and seems to be accurate enough for our purposes. I have had good results with the Salifert, but I'm not picky about how accurately I can judge the shade of blue that results.

[Bugger]

I have both kits the phosphate is somewhat usable although it goes in 0.004 incraments. the No3 kit already broke on me and I hardly used it. the top on the bottle wont screw back on.

[chercm]

but is it consistent in the reading?

[birdman1979]

D &D P04 test kit is pretty good and accurate. I have not used the others.

[chercm]

D &D P04 test kit is pretty good and accurate. I have not used the others.

are u using the high sensitivity test kit ?

[chercm]

any updates ?

[Ralph ATL]

I only use DD Merk, after having both DD and Hach and both results were the same after a year, so I gave away the Hach....