Rodi issues

DMB326 · Jun 7, 2023

I've bought my own home and was working on moving my aquarium to my house from my mother's.
I had 2 rodi ran together for water and it worked fine.

I moved it to my home and it worked fine also.
I replaced all the filters and membranes because it has been a while and they where all bad and nearly bad.
While redoing them I mounted them onto the wall and ran new lines and organized it better.
Now it's not working correctly and I can't seem to get more than 50 psi. I've tried running it off 2 tap valves and 2 different hose lines and none are working properly. I've checked all of the filters seem to be seated. I've tried adjusting the whole house shut off and didnt get a change

I'm at my wits end and about to just get rid of it all since I've already blew my budget for the move and I can't get it to work.
Any ideas would be appreciated.

Saltyreef · Jun 8, 2023

So the gauge on your system usually reads line pressure and indicates by pressure drop, when your pre filter is loaded up with sediment. What was the units pressure originally when you hooked it up at your new home and whats the micron of your new prefilters?
Fwiw and for reference, mine get routinely changed far before they clog or reduce pressure and im using .5 micron.

Also, did you change your membrane? Do you know your rejection rate?

DMB326 · Jun 8, 2023

I tried again this morning and the shut of is working just fine now. Idk what the problem was last night. I was frustrated after messing with it for 2 or 3 hours.

I used the same type of filters as I had before.
A 1 micron and a 0.2 micron but these are new vs the used ones before.

I changed the membranes but kept the same gpd 1 90 and 1 75

Saltyreef · Jun 8, 2023

DMB326 said:
I tried again this morning and the shut of is working just fine now. Idk what the problem was last night. I was frustrated after messing with it for 2 or 3 hours.

I used the same type of filters as I had before.
A 1 micron and a 0.2 micron but these are new vs the used ones before.

I changed the membranes but kept the same gpd 1 90 and 1 75

Are you using soft water?