[Tom White]

I've just changed all my filters and I'm currently flushing the RO, but I'm interested to know what your TDS reading is after DI.

Mines 180 TDS from the tap, don't know what it is after the pre-filters, and it's (so far) a TDS of 10 after the RO.

Yours?

[windymiller]

Mines 70 before and 1 after ro 

[rah]

I'm around 180 before 001 after.

 

[DaveG]

330 ish before ro and 14 after

[dannymack]

380 ish after RO around 5 then 000 after DI polishes. I also put another sediment filter just before going into pump, I know it won't bring the Tds down but it stops the crap going into the pump. I gotta say as I installed the pump before going into the ro I found the pump to be slightly noisy I had a spare 10" filter so added that before the pump and my pump seems much quieter and hasn't affected the pressure.

[GB Window Cleaning]

600gpd pumped ro (130psi) r.o around 250 to 300 ppm before r.o about 1 to 5 ppm after... If i remember correctly.

[EandM]

140 before and 28 after

[jarvy]

460+ before and 15-20 after. 650gpd pumped

[Clever Forum Name]

475PPM TAP
006PPM RO

[dave0123]

384 from the tap -
8 - 10  out of the RO

[Frankybadboy]

376 down to 6-8

[Ian101]

220 in and 013 out after 10 mins of warming 4040 up then connect to di when it hits the 013

[Nick_Thompson]

400 in, 2 out. 40x40 pumped 105 psi.

[paul ette]

and i thought 250 from tap was bad jeez

[Jim Waugh(Albright & Shiny)]

300 in 8 out…

[Tom White]

I so behind with water production; it's such a boring subject! 

I just use a what I think is a standard RO.  It gives me about 500 litres a day; but this reduces in Winter a little, but it's not a problem as long as I start the week with a full IBC.

I think I'm changing my RO filters (150 gallon per day) about once-per-year; probably use about 15 litres of resin per year (maybe?) and I reckon my total running costs are under £200.

Does that sound about right for 500 litres per day?

[R.C Property]

tap water is about 400ppm

before DI its coming out at 016ppm,

membranes are just over 2 years old now,

[robert mitchell]

400 in, 2 out. 40x40 pumped 105 psi.

What pump do you use ,if you dont mind me asking?

[R.W.C.S]

Comes outta the tap at 65, after RO = 0

[JackieW]

My tap water TDS varies throughout the year but whatever it is I've found that  the TDS coming out from the filters is always 5% of the input.