Question for Hanna phosphate meter Users ?

mattliu · 08/17/2007, 03:58 AM

Which test kits would you guys recommend if all you want to do is see if your GFO is starting to leach ?

Is there a kit you guys used before hand that you found decent ?

JetCat USA · 08/17/2007, 06:06 AM

Merck. FWIW drinking water treatment plants have done the tests, GFO does not leach back to the water.

mattliu · 08/17/2007, 09:50 PM

thanks.

pjf · 08/17/2007, 10:00 PM

I have the following phosphate test kits:

Hach PO-19 Phosphorus
DD Merck High Sensitivity Phosphate
Elos Phosphate
Salifert Phosphate

If you are willing to pay for the DD Merck kit, I would pay a little more and get the Hach PO-19 kit ($75.65) from www.hach.com.

I am not satisfied with the DD Merck kit because its color swatches have a yellow tint that does not match my test sample. I found it difficult to determine a color match when using the DD Merck kit. My test sample had a light blue color that fell between swatches of medium blue and light green colors.

Among the lower priced kits, the Elos is superior to the Salifert.

I hope to finish comparative testing of the phosphate kits and post a review in the near future.

08/17/2007, 03:58 AM	#1
mattliu Registered Member Join Date: Nov 2005 Location: tampa Posts: 594	Question for Hanna phosphate meter Users ? Which test kits would you guys recommend if all you want to do is see if your GFO is starting to leach ? Is there a kit you guys used before hand that you found decent ? __________________ "The sea, the great unifier, is man's only hope. Now, as never before, the old phrase has a literal meaning: we are all in the same boat." -- Jacques-Yves Cousteau Current Tank Info: 75 in the works

08/17/2007, 09:50 PM	#3
mattliu Registered Member Join Date: Nov 2005 Location: tampa Posts: 594	thanks. __________________ "The sea, the great unifier, is man's only hope. Now, as never before, the old phrase has a literal meaning: we are all in the same boat." -- Jacques-Yves Cousteau Current Tank Info: 75 in the works

08/17/2007, 10:00 PM	#4
pjf Premium Member Join Date: May 2005 Location: Colorado Posts: 2,954	Hach PO-19 Phosphorus Test Kit I have the following phosphate test kits: Hach PO-19 Phosphorus DD Merck High Sensitivity Phosphate Elos Phosphate Salifert Phosphate If you are willing to pay for the DD Merck kit, I would pay a little more and get the Hach PO-19 kit ($75.65) from www.hach.com. I am not satisfied with the DD Merck kit because its color swatches have a yellow tint that does not match my test sample. I found it difficult to determine a color match when using the DD Merck kit. My test sample had a light blue color that fell between swatches of medium blue and light green colors. Among the lower priced kits, the Elos is superior to the Salifert. I hope to finish comparative testing of the phosphate kits and post a review in the near future. Last edited by pjf; 08/17/2007 at 10:08 PM.

08/17/2007, 06:06 AM	#2
JetCat USA Moved On Join Date: Jun 2004 Posts: 2,847	Merck. FWIW drinking water treatment plants have done the tests, GFO does not leach back to the water.