tds ???

[superclown]

I got my tds meter from member today checked it before entering rodi i got a number of 45 tested it after rodi got a number of 13 so is this acceptable? Is my filters doing a good enough job do i need to add another slow down flow?

 

[spiderman097]

are all your filters brand new?

 

[superclown]

I was told they were replaced 2 weeks before i got rodi I've had rodi about a month. Dont know how accurate this is. Got it from member and did not feel they would lie

 

[spiderman097]

yea, 13 is high for a brand new filters still. Double check the TDS with someone else's or a LFS. Or you can just replace all the filters and double check the TDS. It's either the TDS or the filter which is giving you the high reading.

 

[superclown]

The tds is brand new but what filters would i need to replace im still learning

 

[edulover]

My TDS is 71 going into my RO, 3 coming out, and 0 coming out of my DI. This is a new RO/DI system. For reference.

 

[superclown]

Would working pressure and tuning reducer have an effect on tds output my pressure is 40 most of time

 

[edulover]

My pressure is 40 as well.

 

[fishlips]

If your meter is a hand held, and your dipping into a cup or so to check. Make sure your cup is clean.My filters are 3 yrs old and still put out 0.

 

[superclown]

I was dipping it in a Pyrex cup I was pretty sure it was clean I tries doing the drip method but to check but I wasn't getting a reading that way

 

[schwaggs]

I recently replaced an 11 year old membrane that was outputting 2TDS water so I would say you have a problem either with the filter or how you are measuring.

To get the most accurate reading, try filling the cup with output water to be measured, measuring with the meter (this rinses everything) then dumping the water out and repeat the filling and measuring process until your measurement is consistant for several readings... this will be the true reading. Even a little dust will impact the reading so I have found the fill, measure, dump, repeat method to be pretty foolproof.

If it is still high (I would consider 13 unacceptably high with a 45 input) look for a problem with the membrane. Dirty pre-filters should have little impact on the quality of output water but may have an impact on the quantity of output water. Make sure the membrane is installed and sealing correctly.

 

[superclown]

Ok I will recheck and let u know my results

 

[dawgface]

Post the TDS before your DI as well.

 

[superclown]

Ok will do