5 stages RODI pressure issue

Krully · Mar 1, 2020

Hey guys. I previously had a 3 stages RODI unit with decent flow, nothing changed and I still have it to compare both the 3 stages and the 5 stages.
On the exact same setup the 5 stages is barely pulling anything as you can see in the video while the 3 stages is working perfectly fine. Is this to be expected? I know pressure itself wasn’t the issue on the 3 stages so I’m wondering if it can become one on 5 stages before ordering a booster pump. Thanks a lot.

Link to the video :

piranhaman00 · Mar 1, 2020

Do you know the actual PSI?

Adding extra stages would lower pressure in theory. I run 5 DI stages on mine and I’m sure there is pressure loss but I can visually see the difference. Maybe something is plugged or set up incorrectly on the 5?

Krully · Mar 1, 2020

I do not but this is something I’m going to try and figure out tomorrow.
Something might be plugged wrong although I did try with some membranes one way or another and it made no difference. I’m going to try and see if there’s something wrong about it but there were 0 instructions so I might have failed at some point. I’ll post some pictures for you guys to look at later when I get home.