R.O. problem I'm perplexed.

[mmw64]

I recently replaced all the filters in my four-stage system including the main R.O. element. The water test comes out 000 but the time it takes to fill my container has almost doubled. Has anyone else experienced this problem? It has always taken more time in winter than summer but nothing close to this long. Where do I start to find what the problem is?

 

[YOYOYOReefer]

What’s your water pressure?

 

[Reef.]

Did you use the same size membrane and did you chance the flow restritor at the same time?

 

[mmw64]

What’s your water pressure?

right around 50

 

[Rick's Reviews]

(my RODI came in at 000.4, after first flush from new, now it's 000.16)... Following

 

[Shanasman450]

Is it possible your resin cartridge went in cocked and didn't seal? That happened to my brother. It still read 0 tds for a while, but the water production was abysmal.

 

[Rick's Reviews]

Not intentionally hijacking sorry op.
Like this (pictures) all it has is a piece of foam at the top to secure jelly inside

 

[DaneGer21]

Are your DI canister/a in the correct direction?

 

[Rick's Reviews]

This is how it arrived?
Could you pm me if this is wrong lol

Are your DI canister/a in the correct direction?

 

[mmw64]

Is it possible your resin cartridge went in cocked and didn't seal? That happened to my brother. It still read 0 tds for a while, but the water production was abysmal.

Thanks, I'll check that.

 

[mmw64]

Did you use the same size membrane and did you chance the flow restritor at the same time?

Yes the membrane is the same size. Sorry for my question but what is the flow restrictor?

 

[Reef.]

Yes the membrane is the same size. Sorry for my question but what is the flow restrictor?

Just a tiny device that controls how fast the water hits the membrane, too fast and the membrane doesn’t do its job, it’s recommended to change it every time you change the membrane, you also have to match the size of it to the membrane.

 

[mmw64]

Just a tiny device that controls how fast the water hits the membrane, too fast and the membrane doesn’t do its job, it’s recommended to change it every time you change the membrane, you also have to match the size of it to the membrane.

Where is it located?

 

[Reef.]

Where is it located?

Depends on the model, some its part of the membrane, mostly its tucked behind the membrane cylinder.

 

[mmw64]

Is the same valve that one uses to flush the unit? Thanks for your patience.

 

[Shanasman450]

I suppose it could be built into the bypass valve housing, I'm not familiar with all the various rodi units out there. But the flow restrictor and bypass valve are two separate things serving separate purposes. Can you possibly take a closeup picture of your unit? Specifically in the area of the bypass valve. I can try to point the restrictor out.

 

[Gtinnel]

I suppose it could be built into the bypass valve housing, I'm not familiar with all the various rodi units out there. But the flow restrictor and bypass valve are two separate things serving separate purposes. Can you possibly take a closeup picture of your unit? Specifically in the area of the bypass valve. I can try to point the restrictor out.

Mine is a flow restictor and bypass valve together. It’s fairly common that they combine them together.
Like these

 

[Shanasman450]

Mine is a flow restictor and bypass valve together. It’s fairly common that they combine them together.
Like these

Well would ya look at that. Probably has to do with the fact that I haven't browsed the rodi section for anything more than filter media, but I've never seen that before. Good to know though. Might be nice for cutting down some of the rats nest of tubing next time I replace my restrictor.

 

[mmw64]

Really appreciate every ones help. If I wasn't older than dirt I would send a picture. I will keep trying to figure this out. Merry Christmas!

 

[Reef.]

First thing to do is actually time what flow you are getting, time how long it takes to make 1 gallon, then times by 24, look on the side of the membrane that will tell you what the gallons per day is, if it’s lower than it should beThe connections are normally just pushing type connections so don’t feel afraid to pull stuff apart…easiest thing to do is remove all the filters, then replace just one, run the system to see what is slowing the flow down.