RO/DI - not sure what to think/do

[seuadr]

All,

I've got a mighty mite 50GPD RO/DI system. I purchased new stuff for it, but purchased the actual unit used.

I got the air,water ice "max" replacement pack - plus the RO membrane new. http://theh2oguru.com/filters/filter-packages/max-pack-replacement-filters-w-di.html

i rinsed the filters individually by running 5 gallons each of supply water through them, and then bypassed the RO membrane for 5 gallons and finally ran the entire system 5 gallons before using the water.

now i am seeing some weird readings (or mebby not weird?)

:edit: forgot to add - i am using a HM digital TDS 3 - brand new from intank

heres what i've got:

input tap water: 149 TDS

after first filter (5 micron sediment): 380 TDS

after the second filter (carbon): 420 TDS

after the RO: 65 TDS

after the DI: 360 TDS

so - i removed all the other filters and ran just the RO/DI figuring that the other filters were not rinsed properly, or crap or whatever and with just the RO/DI i'm seeing 105, with just the RO 35 (after flushing for a gallon)

i'm not sure what is going on here - I've got the system piped like this(with a couple extra filters):

it doesn't show a flow path for the RO - might i have it backwards and the output should be from the cap end? (doesn't seem like it..)

Thanks for your time,

Jared

 

[seuadr]

well, i'm a monumental idiot.

i never turned the waste valve back on. DUH.

 

[tkeracer619]

Looks like you have the waste line wrong.

 

[seuadr]

Looks like you have the waste line wrong.

thanks, that is how mine is plumbed - the waste line is on the "bottom" of the housing, the outlet to the DI right above it (like picture):

at this point, i turned the waste valve back on (i've actually got a regular ball valve just before the drain because where the drain is freezes and i was afraid to leave the system to just run and freeze.. in retrospect, it seems like more of a hazard than it is helpful, so i've removed it and will just stick to the restriction and turning the supply off. :headwally: