RODI Pressure gauge lower after filter change

[kitti-fish]

Hi! I have a 75 GPH RO/DI system. I recently changed out ALL filters besides the membrane as the PSI jumped down from 60 to 20. After the change, the PSI won't go above 10. What do I do? I made sure everything is tight, made sure all media is put in correctly, and have run the line for an extended period of time. Trying to get BRS on the phone but thought I would post here first. Could my water pressure just be low due to the freeze?

Next order of business is to buy a booster but wanted help before I throw down some money. Thanks~

 

[bumpyj38]

Hi! I have a 75 GPH RO/DI system. I recently changed out ALL filters besides the membrane as the PSI jumped down from 60 to 20. After the change, the PSI won't go above 10. What do I do? I made sure everything is tight, made sure all media is put in correctly, and have run the line for an extended period of time. Trying to get BRS on the phone but thought I would post here first. Could my water pressure just be low due to the freeze?

Next order of business is to buy a booster but wanted help before I throw down some money. Thanks~

My first thoughts:


Did you leave the flush valve open?
Was it reassembled correctly after putting new filters in (did you disconnect and reconnect any of the RODI Lines)?
Is there a different issue that caused it to drop in pressure in the first place like an issue with the water coming in?

how long have you had this system?

 

[kitti-fish]

My first thoughts:


Did you leave the flush valve open?
Was it reassembled correctly after putting new filters in (did you disconnect and reconnect any of the RODI Lines)?
Is there a different issue that caused it to drop in pressure in the first place like an issue with the water coming in?

how long have you had this system?

Flush valve is closed. I made sure to flush the system after filter change but I promise it's closed.

No, I did not disconnect any RODI lines. I made sure after assembly everything was as it was.

I can only think that maybe our pipes are somewhat frozen. We opened other water sources and this continued dropping the pressure in my system. However, my problem is the PSI was 20 and now it's 10. I would assume it would be 20 or become higher.

I have had this system since around Aug 2024 so overdue for a filter change.

Pretty upset as I have tried for the past hour to do a water change

 

[kitti-fish]

Somewhat good news. PSI is reading around 25 which is still very low. Our pipes are not insulated so they may have slightly frozen due to temperature drop.

 

[fishyjoes]

You can get a separate pressure gauge (they screw onto a faucet) and compare that with the other to see if it's just the overall pressure in your house or something with the rodi itself.

 

[kitti-fish]

You can get a separate pressure gauge (they screw onto a faucet) and compare that with the other to see if it's just the overall pressure in your house or something with the rodi itself.

I'll probably do that thanks for the idea

 

[Buckeye Hydro Verified Sponsor]

Did you take the plastic wrapping off the filters you installed?

Try opening a faucet that is fed by the same pipe - do you get full flow out of the faucet? If so, frozen pipes probably not the issue. If you do have frozen pipes, you're going to have issues much more significant than just your RODI...

 

[kitti-fish]

Did you take the plastic wrapping off the filters you installed?

Try opening a faucet that is fed by the same pipe - do you get full flow out of the faucet? If so, frozen pipes probably not the issue. If you do have frozen pipes, you're going to have issues much more significant than just your RODI...

I did.

And I have. The pressure fluctutates when it is being run. When I mean frozen I mean more like a bit of frozen buildup. The southern part of the USA is sadly not equipped for a little snow. Everything is melting so I am hoping our pressure goes back to normal.

 

[scowall]

Try closing the flush valve the other way. I can turn mine 180 degrees, giving a lower-pressure turned one way versus the other.

 

[kitti-fish]

Try closing the flush valve the other way. I can turn mine 180 degrees, giving a lower-pressure turned one way versus the other.

Mine only turns 90 degrees

 

[kitti-fish]

UPDATE: It's not the system and it's not our house. Our water provider system froze and now there is no pressure in the house or much less the city and we also have a boil order. I guess I used up whatever was left in the pipes :anxious-face-with-sweat: so please disregard this entire thread I don't think it was anything I did or did not do. My fishtank did get that water change so it willhave to do

 

[BeanAnimal]

I don't think it was anything I did or did not do. My fishtank did get that water change so it willhave to do

There you did it - went and broke the entire city water supply. Don't answer the door if they knock.. just yell "Dave's not here, Man!".

 

[kitti-fish]

There you did it - went and broke the entire city water supply. Don't answer the door if they knock.. just yell "Dave's not here, Man!".

Better go into hiding before it too late

 

[Üter]

UPDATE: It's not the system and it's not our house. Our water provider system froze and now there is no pressure in the house or much less the city and we also have a boil order. I guess I used up whatever was left in the pipes :anxious-face-with-sweat: so please disregard this entire thread I don't think it was anything I did or did not do. My fishtank did get that water change so it willhave to do

I'm glad you figured it out. thought was is whatever you were running at before, should be similar. something changed. but glad you found it was the water supply rather than beat yourself up with what you did wrong. .

 

[kitti-fish]

I'm glad you figured it out. thought was is whatever you were running at before, should be similar. something changed. but glad you found it was the water supply rather than beat yourself up with what you did wrong. .

Yes I guess I just noticed the pressure super low today and usually it's around 60PSI. Angry that the company failed to notify us because I would have not done a water change but it is what it is. I'm just happy the fish and coral have fresh water. That's the main thing.

 

[Üter]

Yes I guess I just noticed the pressure super low today and usually it's around 60PSI. Angry that the company failed to notify us because I would have not done a water change but it is what it is. I'm just happy the fish and coral have fresh water. That's the main thing.

if I remember correctly, below 40 psi is where you would want to get a booster pump. running around 80 is the optimum.

 

[kitti-fish]

if I remember correctly, below 40 psi is where you would want to get a booster pump. running around 80 is the optimum.

Yes usually it runs around 60 which is the normal city water pressure. I’m definitely going to get a booster down the line now.