Higb TDS

[Signalhead]

Good morning,

I noticed that I have high TDS. In the 200 after DI. I have:
sediment filter
Granulated carbon
Carbon block
2 membranes
Then the DI.
Replaced the DI this weekend and read 0. The rest of the filters are withing the 3 months date except the membranes that are 12 months. TDS in from faucet is 250.
I made about 60 gallons of water to do a water change. To clean my sump. And now is about 195 to 200.
Any help troubleshooting

Thank you,

 

[MarineandReef Jaron]

I would have a couple of questions.
1. How are you measuring TDS?
2. Can you give us measurements for Tap Water, Post membrane, and Post DI?
3. Make sure to wait at least 5 minutes to measure RO product water to avoid measuring TDS creep.
4. Did you make 60 gallons all at once or was this in several small batches?

 

[Signalhead]

1 - i use a 2 port online tester with in and out.
2- Tap Water is 305 tfd at 45 psi
Post membranes is 141 tds
Post DI 373 tds
Verified with the hand held tester.
3- I do run it for 5 times a bit over 5 minutes. I use a bypass
4- I made 60 gallons in one setting.
I'm using the large di canister
By the looks of it I will be replacing all my filters and membrane.

 

[KStatefan]

Looks like the membrane is shot and the DI consumed

A booster pump would be a good improvement to your system

 

[Signalhead]

I'm done changing all the filters, and just realized I have only one membrane. So there we go to amazon. Once the new one comes in I will start with water changes, been that I introduced 45 gallons of bad water. I have a pump but, I disconnected the pump to use a light.

Thank you for your input.

 

[Signalhead]

Good morning, I ended up replacing all filters, both membranes and new DI and all numbers looks good tomorrow 50 gallons water change.

Thanks for all your help,