Phosphates in RODI?

[SlimJim009]

I Recently got an rodi system and all water tests i did were very good besides phoaphate. I get a reading of about 1 on phosphate. I have the rodi buddy along with the choromine remover since I believe I have chloromine in my water. Is there supposed to be phosphates in my rodi water or am I doing something wrong? Any help would be amazing, thanks

 

[derekgoude]

If you got zero tds in your water after filter and do resin, it's a test kit issue.

 

[fishguy242]

agree if phos after rodi,double check ,with different test source

 

[Opus]

I Recently got an rodi system and all water tests i did were very good besides phoaphate. I get a reading of about 1 on phosphate. I have the rodi buddy along with the choromine remover since I believe I have chloromine in my water. Is there supposed to be phosphates in my rodi water or am I doing something wrong? Any help would be amazing, thanks

What test kit are you using?

 

[SlimJim009]

I use api

 

[SlimJim009]

What test kit are you using?

Apu

 

[SlimJim009]

Apu

Api

 

[Opus]

Api

Your test kit is probably the issue. I'm not sure how it reads below one. If you have .01 are you going to interpret that as 1 with the kit? You would need a low range test kit like the hanna kits but theirs are for saltwater and I think give false readings with freshwater. I've never looked to see if they have a freshwater version.

Check out Randy's reply toward the end of this thread:

PO4 in RODI

So I've been trying to solve a repetitive PO4 problem. I finally tested my RODI water and found .09 PO4. What do you do with that? TDS is reading 0

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