My Hanna phosphorus checker is so unreliable I’ve just done 4 tests back to back and got the following
152ppb
121ppb
59ppb
89ppb
test procedure is down to a tee had the checker for a good few months I’m going through reagents like money is no object it’s a joke spending a good hour of my evening to try and get results that are similar
any suggestions or anyone having the same issue
I take the water from the middle of the dt with a syringe and fill to the line every single time
it’s getting to the point I just want to take a hammer to the checker and break it into oblivion
152ppb
121ppb
59ppb
89ppb
test procedure is down to a tee had the checker for a good few months I’m going through reagents like money is no object it’s a joke spending a good hour of my evening to try and get results that are similar
any suggestions or anyone having the same issue
I take the water from the middle of the dt with a syringe and fill to the line every single time
it’s getting to the point I just want to take a hammer to the checker and break it into oblivion