BRS RODI leak + pressure gauge reading 0??

[tribbitt]

My newly installed (used) BRS RO/DI system leaks at the middle canister. I tightened it, I opened and retightened, i swapped cups. Not sure exactly where it leaks from - whether it’s the seal or if it’s leaking from the connection between two cups.

A very small drip, not a trickle or spray, but after making ten gallons (roughly an hour and a half) it made a puddle large enough to be worrisome.

Also, the pressure gauge reads 0 despite the unit functioning properly. It is plumbed properly as well- the output of the second carbon block feeds into a Y splitter, one side of which goes to the pressure gauge and the other side of which goes to the membrane.

Any thoughts?

 

[psidriven]

gauge could be broken. check if it's the housing is cracked. I had a housing crack at the manufacturing seam. it only got worse not better so might as well replace sooner than later.

 

[tribbitt]

I looked - the face doesn’t look cracked but i didn’t pay attention to the back or anything. Where should I look? Replacements don’t seem expensive - do i get glycerin-filled or air filled?

Taking pressure gauge advice from a guy named psidriven seems very apt lol

 

[Coral reefer]

You have the flush valve open in the pic

 

[tribbitt]

You have the flush valve open in the pic

I just finished flushing it at the time. Flush valve closed is still 0psi

 

[Patio]

The plastic pieces that connect each canister to one another tend to crack easily. Maybe that could be causing the leak.

 

[tribbitt]

Appreciate it! Is this something I can tighten or do i need a new one, and have to dismantle the system to install a new one

 

[Patio]

You could try tightening and if that does not work then plan on replacing. I believe you do have to take the canisters off of the frame to get access to the NPT nipples. I took a really quick glance on youtube to see if I could find a video replacing them for you but had no luck wading through the many basic install videos.

If you are nervous taking it apart, take pic/video before so you have a reference when putting back together.

 

[tribbitt]

Thanks for the lead!

 

[Coral reefer]

Are you missing an print inside the leaky canister?

 

[tribbitt]

What is a print?

Are you missing an print inside the leaky canister?

 

[Coral reefer]

Lol, sorry. Stupid phone. O-ring

 

[tribbitt]

Lol, sorry. Stupid phone. O-ring

lol, no I have the O ring.

 

[H2OPlayar]

lol, no I have the O ring.

Double check that it isn't broken?

 

[tribbitt]

Double check that it isn't broken?

I did, actually. First thing I checked because that's what should guarantee the seal, right? Wiped it down. A small amount of the rubber came off on the towel though, like the black rubber smeared off, when I wiped it. But when I touch it it's rubber texture, not play doh or sticky or anything.

 

[psidriven]

maybe use some silicone lube on the o-ring. it can bunch up and leak.

 

[tribbitt]

maybe use some silicone lube on the o-ring. it can bunch up and leak.

I think we have some Super Lube silicone lubricant in some closet somewhere. Would that work / be safe? I worry it'll make its way into the water

 

[psidriven]

if it's this https://www.super-lube.com/silicone-lubricant it should be fine since it's NSF. i usually use the one for plumbing.

 

[tribbitt]

if it's this https://www.super-lube.com/silicone-lubricant it should be fine since it's NSF. i usually use the one for plumbing.

It is that one. Thanks for the suggestion

I assume apply an extremely thin layer?

 

[psidriven]

correct. think others use molykote.