Help. ...my rodi isn't getting any input to DI canister.

[miserkris]

Hi. ..

I replaced my old rodi filter with an air water and ice typhoon 75 gallon per day rodi filter see the picture please.

After I hooked it up I realized that the DI section doesn't get any water at all what could be causing this? I even checked the sediment and the carbon filter cartridges they get water flowing and the water is flowing into the waste outlet very rapidly ....

What could be causing this is, is there a problem with the check valve or the other valve? Water psi coming into rodi is 55psi.

Tried using a 800 flow restrictor for waste instead of current 1100, now i see 1 drop every 6sec.

?

Thanks much!
Kris

 

[Breadman03]

It sounds like you may be missing the flow restrictor, or it may not be working properly. The restrictor provides resistance to the wastewater flow, forcing some of the water through your RO membrane. Almost all of your water will go to waste if it is missing.

Here is the diagram for your RO system.

Alternatively, your ASOV may have a malfunction or be plumbed incorrectly.

 

[miserkris]

It sounds like you may be missing the flow restrictor, or it may not be working properly. The restrictor provides resistance to the wastewater flow, forcing some of the water through your RO membrane. Almost all of your water will go to waste if it is missing.

Here is the diagram for your RO system.

Alternatively, your ASOV may have a malfunction or be plumbed incorrectly.

I got it used from a friend. He said all filters membrane etc were 2mo old. Here's the pic. I see asov,check valve and flow restrictor. ..no other valves.

Restrictor. .. i now turned half open only. Now i get di section 1 drop a sec. This will stress that membrane right?

THANKS!

 

[ericarenee]

The Membrane in the Auto Shut off Valve must be bad or you have it connected improperly.. Could also be a totally blocked membrane or one of the ports leading to or out of it.. Check everything one piece and fitting at a time to be sure no blockage and Correctly connected

 

[miserkris]

Ok will check one piece at a time. ..btw the flow restrictor should be in this mode always right. ..ie full open?

 

[Deleted member 336650]

Hey there. I have a AWI 75 gallon that I also got used. Just from looking at it, the black valve looks like it should be as it is in the last picture. I can only get it to work correctly when its position looks to be closed ( perpindicular to the valve )

I'm making water right now & I just went in there to make sure I was right. It looks closed but it works for mine.

 

[miserkris]

I think I'm narrowing it to the membrane unit. I removed membrane it was clean. Filled the canister with water. It only flowed via waste water outlet not the one going to asov/DI.

Also hooked up unit. ...now i can tell there's no output see 2nd pic. ...waste is flowing fast. Could it be membrane is clogged? Is this normal?

When i closed flow restrictor water trickles...
Pls advice

 

[miserkris]

Hey there. I have a AWI 75 gallon that I also got used. Just from looking at it, the black valve looks like it should be as it is in the last picture. I can only get it to work correctly when its position looks to be closed ( perpindicular to the valve )

I'm making water right now & I just went in there to make sure I was right. It looks closed but it works for mine.

Just checked. When i fully close restrictor i am able to make water. There's some wasted water too. Like this position is the only one that works.hoping that this is right.

Do you have a 800 or 1100 restrictor ...manual says use 800 for 75gpd.
Thx

 

[Deleted member 336650]

Just checked. Label says 800

It does not make much sense just looking at the valve, but it works. When I got it, I was told to do a "fast flush" which was explained as turning that valve off & on for 1 or 2 seconds at a time & repeat 15-20 times. Then run the product down the drain for 10 minutes or so. Using a TDS meter bears this out. If I do not do it, I will get a product with TDS of anywhere from 1 to 6. My last 3 times filling a Brute can has been TDS=0.

 

[Deleted member 336650]

tds

tds

Here is the meter I have. Really easy to set up.

http://www.marinedepot.com/HM_Digit...S_Meter-HM_Digital_Inc.-RO1312-FIROPM-vi.html

http://www.amazon.com/HM-Digital-DM...TF8&qid=1447631135&sr=8-7&keywords=tds+meters

Amazon is a bit cheaper, but you can read some reviews on MD

 

[miserkris]

Thanks all. What a confusion. When restrictor is fully closed it works. ...though it doesn't fully close the waste outlet which is the purpose ie to give pressure to the membrane.

 

[Mark9]

FYI, the fast flush flow restrictor is a replacement for the inline flow restrictor.
When "closed", it acts just like an inline flow restrictor.
When open, it does a flush.
So yes, leave it "closed", which is not really closed, but restricted.

 

[homer1475]

FYI, the fast flush flow restrictor is a replacement for the inline flow restrictor.
When "closed", it acts just like an inline flow restrictor.
When open, it does a flush.
So yes, leave it "closed", which is not really closed, but restricted.

This is exactly what I was just going to post. The flush valve needs to be closed in order to provide restricted flow(it will still have waste water also). When its open, or in the flow direction, it is unrestricted, meaning you won't see any water going into your DI stage.

The whole purpose of the flush valve is to flush out your filters before each use.

 

[miserkris]

So the unit is same for 75 and 100 gpd right except for the membrane rating?

How can i tell what my membrane rating is. ...looks blue like any other !

 

[Mark9]

The flow restrictor is different for a 75 or a 100.
You should match the restrictor to the membrane for optimal performance.
You said earlier you have a 75gpd.

 

[miserkris]

The flow restrictor is different for a 75 or a 100.
You should match the restrictor to the membrane for optimal performance.
You said earlier you have a 75gpd.

I thought so. I contacted the original owner. He said he replaced membrane with a 100gpd from brs. So now i switched to the 1100 flow restrictor now as per manual suggested.

So is it true that for AWI....the 75gpd vs 100gpd is determined by the membrane used right? In that case the same 3 filters and resin etc are common for both ratings.

Lmk if am right. ..

 

[Mark9]

So is it true that for AWI....the 75gpd vs 100gpd is determined by the membrane used right?

Determined by membrane AND flow restrictor

In that case the same 3 filters and resin etc are common for both ratings.

Fair statement for the sediment, carbon and DI.
But also there are many options for carbon and sediment filters.
microns, chloramine removal, etc

 

[BlueRoofTang]

Exactly...what you have are the flushing type restrictors. What this means is when you open it, all the flow goes out the waste. It's bypassing the restrictor and it helps to flush the ro membrane. When you close the valve, it's then utilizing the restrictor to force water through the membrane and to the DI.

 

[miserkris]

Exactly...what you have are the flushing type restrictors. What this means is when you open it, all the flow goes out the waste. It's bypassing the restrictor and it helps to flush the ro membrane. When you close the valve, it's then utilizing the restrictor to force water through the membrane and to the DI.

I did notice that since i have a 100gpd membrane. ..using the 1100 restrictor produces less water than when i used the 800 restrictor. With 800 rodi water output was like doubled.

Is that normal?
Tia.

 

[Buckeye Hydro]

An 800 flow restrictor will produce LESS waste water than an 1100 restrictor.

Russ