Damn You phosphates!!!
- Thread starter psuedopimp
- Start date
Buckeye Hydro
.Registered Member
If your membrane was in good shape and you had high pressure, you should see a significantly higher rejection rate...
Russ
psuedopimp
New member
sorry that is my old membrane. i will post test results from my new membrane when i get it in a couple of days.
i don't have a gauge on my ro/di unit, but when i was putting in my sprinkler system i remember my water pressure at the house was 90 psi.
at a 98% reduction, i should be at or around 14 tds going to the ro/di.
i don't have a gauge on my ro/di unit, but when i was putting in my sprinkler system i remember my water pressure at the house was 90 psi.
at a 98% reduction, i should be at or around 14 tds going to the ro/di.
psuedopimp
New member
well i got my new membrane, and the tds was 55 after ro. bummer i was expecting way less. the membrane was a direct replacement model. the dow filmtec 75 gpd membrane.
psuedopimp
New member
i guess that is a 93% reduction, but still kind of a bummer.
psuedopimp
New member
i forgot to mention, but the first reading i got was 89, 74, then constantly 54-55 the next three. so maybe it will go down after a while.
Buckeye Hydro
.Registered Member
you are flying blind w/o a pressure gauge...
Russ
Russ
psuedopimp
New member
okay so i finally got around to getting my pressure guage and dual tds meter ordered and installed. i have been burning through DI resin and it was bumming me out. so the pressure going into the unit is ~90 and the pressure going to the membrane is ~60-70.
with my tds meter installed, the ro water was reading at 5 and after di it was 1.
so i haven't replaced my pre filter yet, but will my prefilter and DI before i make my next batch of water.
with my tds meter installed, the ro water was reading at 5 and after di it was 1.
so i haven't replaced my pre filter yet, but will my prefilter and DI before i make my next batch of water.
jmait769
-CSHFLW
Great! Probably exhausted the DI and that is why you are still getting 1. Where did you get the filters and gauges?
Jay
psuedopimp
New member
i just got them at BRS...now that i re-read the thread i guess i should have bought at BFS since russ was so nice to give all that information.
Buckeye Hydro
.Registered Member
Yes - sounds like your prefilters are really clogged. With the high TDS of your feedwater, you won't see normal rejection rates with normal pressure.
Buckeye Hydro
.Registered Member
You're killin' me!
deehz
New member
If it helps ill order mine from bfs tomorrow
+1!
Hey Russ, can you quote me a DI container, resin, TDS meter and pressure gauge? I already have the RO system. My biggest fear is now that I have read your post, I may not have sufficient pressure for the RO. I don't want to get a pump for it costing me mula!
Thanks!
jmait769
-CSHFLW
+1 Sorry, I was going to email you but might as well ask here!If it helps ill order mine from bfs tomorrow
Russ, I want to order this filter kit, BFS-379 Filter Kit - Chloramine Special RODI, from you but need to make sure I have everything to use this in my system.
"œThis kit includes the same filters which are supplied with new Chloramine Special RODI systems. Includes one 1 micron sediment filter, one catalytic GAC refill, one 0.5 micron carbon block, and one color-changing DI resin refill. All cartridges measure 10" x 2.5" (nominal)."
The GAC and DI resin are refills? What else do I need to use them? I'm afraid that I won't have a cartridge to refill since I did not buy the unit from you. Thanks for the help!!
Jay
Buckeye Hydro
.Registered Member
deehz - you have a pm!
Russ
Russ
Buckeye Hydro
.Registered Member
Hi Jay - both the catalytic GAC and the DI use the same refillable cartridge:
that comes as standard equipment on our new systems. If your current cartridges aren't refillable, then you could get a DI cart and a CGAC cart (or second carbon block), and then next time you would just need the refill media.
Russ
psuedopimp
New member
okay why are you using the chloramine filters? i know steffen is also, but i am pretty sure that our municipalities only use chlorine. Am i mistaken? i have been using the standard filters.
