adamangler
Wakefield Window Warrior
- Messages
- 4,267
- Location
- Wakefield
Hi chaps.
Having a problem with my 450 gpd r.o that the tds wont go down on.
About a year ago i upgraded from a 150 to 450 r.o put new membranes in all was fine.
Anyway about 3 months ago tds was getting up to about 40 so i ordered some cheap membranes off ebay and sediment and carbon filters. Changed it all over but the tds was about the same, around 30-40. I was a bit gutted and put it down to the cheap membranes (voltron).
So fast forward to last week and the tds had gone up to 50...so i ordered some axeon membranes from @doug atkinson they came today...i put them in with new sediment and carbon filter, flushed it, ran it for a bit etc....tds wouldnt come down below 50
so now im a bit perplexed, i checked each membrane one by one by by-passing the others to see if one was the problem.... nope. i took the carbon and sediment filters out, nope still same.
I noticed when i by passed the last resin cartiridge the tds dropped slightly, but the resin chamber is empty and all clean inside.
SO i took each mebrane and housing off and run it direct to the outside tap and after a quick run they were coming out at 12 tds (from 280 tap)
put them all back on the r.o and tds back up to about 50.....
SO (lol) the only thing i can think of is the housings, pipes etc are contaminated ? is this possible to affect tds like this ? if so how do i clean it, run a load of bleach through ? any other ideas anyone ?
@spruce any ideas ?
thanks
Having a problem with my 450 gpd r.o that the tds wont go down on.
About a year ago i upgraded from a 150 to 450 r.o put new membranes in all was fine.
Anyway about 3 months ago tds was getting up to about 40 so i ordered some cheap membranes off ebay and sediment and carbon filters. Changed it all over but the tds was about the same, around 30-40. I was a bit gutted and put it down to the cheap membranes (voltron).
So fast forward to last week and the tds had gone up to 50...so i ordered some axeon membranes from @doug atkinson they came today...i put them in with new sediment and carbon filter, flushed it, ran it for a bit etc....tds wouldnt come down below 50
so now im a bit perplexed, i checked each membrane one by one by by-passing the others to see if one was the problem.... nope. i took the carbon and sediment filters out, nope still same.
I noticed when i by passed the last resin cartiridge the tds dropped slightly, but the resin chamber is empty and all clean inside.
SO i took each mebrane and housing off and run it direct to the outside tap and after a quick run they were coming out at 12 tds (from 280 tap)
put them all back on the r.o and tds back up to about 50.....
SO (lol) the only thing i can think of is the housings, pipes etc are contaminated ? is this possible to affect tds like this ? if so how do i clean it, run a load of bleach through ? any other ideas anyone ?
@spruce any ideas ?
thanks
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