RODI Canisters Leaking?

Miketc17 · Nov 3, 2020

Good evening,

I’ve been running this RODI system for months without a single issue. Today I installed BRS’s auto shut off valve and auto flush valve and since, two of my canisters are leaking. They’ve never leaked before and all filter media is only 2 months old. Any ideas?

tricky_tran · Nov 3, 2020

pinched oring?

Softhammer · Nov 3, 2020

Probably the o rings on top of canisters. They tend to compress and leak. Could also be the 1/4” slip fitting threads. A wrap or 2 of Teflon tape should solve it.

Miketc17 · Nov 3, 2020

tricky_tran said:
pinched oring?

Thanks for the reply. Not sure if the video posted properly.
They haven’t been opened since I put it together and have been running perfectly prior to installing the new valves today.

tricky_tran · Nov 3, 2020

Miketc17 said:
Thanks for the reply. Not sure if the video posted properly.
They haven’t been opened since I put it together and have been running perfectly prior to installing the new valves today.

unfortunately the video did not post. photo of where its leaking from?

Miketc17 · Nov 3, 2020

tricky_tran said:
unfortunately the video did not post. photo of where its leaking from?

Updated with pics! Will keep trying the video

lapin · Nov 3, 2020

You have not touched the canisters to put in new filters is what I am hearing. If they are leaking from where the canister meets the head, what might be happening is more pressure is causing them to leak. Can you tighten them a little more? I mean a little not too much. If they are leaking at the press in fitting (tubes) then you can re seat the tube in the fitting.

New pic see responce below

Miketc17 · Nov 3, 2020

Updated with the video!

JGT · Nov 3, 2020

lapin said:
You have not touched the canisters to put in new filters is what I am hearing. If they are leaking from where the canister meets the head, what might be happening is more pressure is causing them to leak. Can you tighten them a little more? I mean a little not too much. If they are leaking at the press in fitting (tubes) then you can re seat the tube in the fitting.

Agree, think the valves you added is causing more back pressure causing them now to leak. Tighten with the canister wrench.

lapin · Nov 3, 2020

Softhammer said:
Could also be the 1/4” slip fitting threads. A wrap or 2 of Teflon tape should solve it.

take tube out and unscrew the fitting. wrap some teflon tape on fitting

Daddy-o · Nov 3, 2020

It is not the canister

excell007 · Nov 3, 2020

Add a few rounds of teflon tape on the elbow that's leaking. Clean the groove on the canisters where the oring seats, make sure no fiber or other debris, then lightly coat oring with food grade silicone grease.

John08007 · Nov 3, 2020

Before, did you turn it off with a valve before the filter? If so, now the filters are pressurized when its shut off. Maybe the seal was always compromised but never had the pressure behind it to leak.

JGT · Nov 3, 2020

Daddy-o said:
It is not the canister

Then from wherever it’s leaking add Teflon tape.

Daddy-o · Nov 3, 2020

The fitting for the

JGT said:
Then from wherever it’s leaking add Teflon tape.

Ummmm, its not mine

Miketc17 · Nov 3, 2020

JGT said:
Agree, think the valves you added is causing more back pressure causing them now to leak. Tighten with the canister wrench.

I just tightened all of them and still leaking.

tricky_tran · Nov 3, 2020

so the first part of the video looks like its leaking from the elbow. the second part looks like its leaking from the canister?
can you remove the elbow, clean and reseal with teflon? the canister, remove, clean o-ring, reseat and try tightening again?

Tcook · Nov 3, 2020

excell007 said:
Add a few rounds of teflon tape on the elbow that's leaking. Clean the groove on the canisters where the oring seats, make sure no fiber or other debris, then lightly coat oring with food grade silicone grease.

<This. I have found that the BRS canisters all leak. Especially with a little back pressure. You need at least 3-4wraps of Teflon tape on all murlock threaded fittings. Silicon grease on all the o rings as noted above. I wonder if these o rings are a smaller diameter than the ones that came with spectrapure and captive purity systems that I have used years ago.