tds reads 002 ppm

[madisonrose]

so my typhoon 75gpd is reading 002 ppm
which filter should i plan on changing?? just the main one or all of them??
i know its not a big deal with that reading i just wanted to plan ahead abit

 

[cujo6984]

have you tested before the di that will tell you what need to be replaced. how old is the ro membrane? has it been flushed?

 

[madisonrose]

i havent tested before the di????????
i can think of how to test di output, the unit i bought was second hand and i have used it close to a year now so i figured it time to think about changing filters. can you flush membranes to clean out????

 

[snowmaker]

If your unit does not have a flush kit for membrane, you can get one here for $10:
http://www.bulkreefsupply.com/RO/DI-Filters-&-Systems-RO/DI-Accessories/c9_11/index.html

Saturday, I had 14ppm out of RO and 22 out of DI. I flushed RO membrane for a few minutes and changed DI resin. Ran unit for 5 minutes and checked - 3 out of RO and 0 out of DI.

 

[coralcor]

i get about 2-3 out or RO 0 out of duel DI(IT WAS FREE)