Rodi

[jose hernandez]

So I have a bulkreefsupply 7 stage rodi unit upgraded the membranes to dual 200gpd I changed the sediment filter carbon blocks aNd all of the resin when I turned on my tds meter line 1 shows 5 line 2 n 3 show 0 so I tested the water With my Hanna 736 ulr checker phosphates are 0 is this normal?

 

[jose hernandez]

Here are some pics

 

[dbowman5]

i would expect no contaminants in RODI water. did you check the water before the unit?

 

[jose hernandez]

I changed all the filters as far as checking the water I checked the phosphates is there any other thing I need to check I have it running and it’s showing 4 so It’s goin down

 

[KStatefan]

Where is line 1, and 3 measuring the TDS?

 

[jose hernandez]

It’s after the 2 carbon blocks lines 1 through 3 are the resin Canion pro anion pro and mixed beed cation pro

 

[Spieg]

Yes that is pretty normal depending on your local water source. Final sample should be zero TDS if your system is working properly.

 

[RobB'z Reef]

If you have dual membranes tds will go up because you are recycling between membranes. If after your last DI cartridge you're at zero don't sweat it. It is what it is based on your source water.

 

[jose hernandez]

K thnks