10" rodi membrane 200 gpd

[kenand]

I replaced my filters,but not the 2 membranes.
Reading 15ppm. Is this ok? I can't find 10" with 200 gpd.
Does anyone have a link they can send me for the correct membrane? And does it matter which way the other cartridges go in? It looks universal to me.Thanks in advance.

 

[KStatefan]

Where is it reading 15ppm?

Go to the vendor for a replacement membrane if you do not have a standard size

 

[kenand]

Where is it reading 15ppm?

Go to the vendor for a replacement membrane if you do not have a standard size

It's reading it at the tote where I fill.

 

[Lbrdsoxfan]

If the last stage is reading 15ppm that's a no joy. Something ain't right. If it's a RO/DI you shouldn't have double digit anything after the last stage

 

[kenand]

If the last stage is reading 15ppm that's a no joy. Something ain't right. If it's a RO/DI you shouldn't have double digit anything after the last stage

It's reading it at the tote where I fill. I only changed the 3 filters,but not the 2 membrane.

 

[Lbrdsoxfan]

Are you using resin or just carbon & sediment filters? Have you tested tds before or just started testing?

 

[kenand]

Are you using resin or just carbon & sediment filters? Have you tested tds before or just started testing?

Just using carbon and sediment. I need to find 2 membranes.

 

[Lbrdsoxfan]

Just using carbon and sediment. I need to find 2 membranes.

More than likely it's just 2x 100gpd membranes (which are easy to find) to make it 200 gpd. 200gpd membranes are out there, just not usually in most hobbyist kits.

 

[kenand]

More than likely it's just 2x 100gpd membranes (which are easy to find) to make it 200 gpd. 200gpd membranes are out there, just not usually in most hobbyist kits.

There's not a " thus side up" on the e fikters,is it? They look the same on both ends. This is my first time.

 

[Lbrdsoxfan]

There's not a " thus side up" on the e fikters,is it? They look the same on both ends.

Black rubber flange goes on the cap end. Only should install one direction.

Google is your friend:

 

[kenand]

Black rubber flange goes on the cap end. Only should install one direction.

Google is your friend:

That will make a difference?

 

[Lbrdsoxfan]

That will make a difference?

That is the correct way, anything else is wrong.

 

[kenand]

That is the correct way, anything else is wrong.

I mean that will bring the number down?

 

[Lbrdsoxfan]

I mean that will bring the number down?

Don't know, but If it's not correctly installed, it certainly won't help.

 

[kenand]

Don't know, but If it's not correctly installed, it certainly won't help.

 

[kenand]

So the white filter has no gasket and the other 2 have white gaskets on both ends and all 3 look symmetrical.

 

[Jamie814]

On a standard RO/DI unit Carbon and Sediment filters do not have certain orientation. Membranes do as do the DI resin canisters. You have not stated if you changed the DI Resin? DI is the last stage and regardless the other filters age if the DI is not exhausted you should be lower than 15ppm TDS out of the unit.

 

[kenand]

These are the only 2 I didn't change.

 

[Jamie814]

Can you post a picture of your entire unit? Where is the DI canister? DI resin will need the most frequent changing to keep TDS at or near 0

 

[Jamie814]

If your unit is rated at 200 GPD those are each 100 GPD membranes.