Please help with RO/DI unit

[Reeftanker3295]

I have a typhoon III RO/DI unit. I replaced all of the filters a a few weeks ago and I noticed that the unit no longer made the noise it used to make when the water went down my drain. That wasn't a problem though since it was still working fine. A week ago, it completely stopped making water. Water was getting to the membrane fine, but no water comes out. I replaced the membrane, flushed it for an hour, and nothing improved. Water is still flowing strong out of the drain though. I am really confused as to why this is happening. I tried unscrewing all the filters and making sure they were installed correctly, but that didn't help.
Any ideas as to why this is happening? I really need water!

 

[Meadowlane]

Might be a kink in the tubes?

 

[Reeftanker3295]

Might be a kink in the tubes?

Nope. There isn't a kink from the membrane to the DI unit, but the water never reaches the DI.

 

[charliethetuna88]

Take all the filters out run the unit for a minute with the membrane only if the water comes out fine add on filter at a time till u find the one that's slowing the unit down I had a brand new carbon filter that was bad I held the bottom of it with my and and blew into it the air wouldnt pass threw the filter it was shot I then replaced it and everything fine

 

[MatthewScars]

First, you dont need to flush the RO mem for an hour. Two minutes is more than enough.

take ALL media out of the RODI and add one back at a time to find the exact issue. Let us know when you find that,

Also, what is your PSI?

 

[Reeftanker3295]

I found the problem. It was the carbon filter! Water doesn't even go through it and when it's unscrewed water shoots all over, so the water must be highly pressurized in there. I sent AWI an email. Hopefully I can get a new cartridge soon!

 

[Awibrandy]

I found the problem. It was the carbon filter! Water doesn't even go through it and when it's unscrewed water shoots all over, so the water must be highly pressurized in there. I sent AWI an email. Hopefully I can get a new cartridge soon!

Is it a new carbon filter? If it is AWI will be sending you a new one. They do have great customer service.

 

[Reeftanker3295]

Is it a new carbon filter? If it is AWI will be sending you a new one. They do have great customer service.

Yup I got it 2 weeks ago. That's good to know! I really need water quickly.

 

[Awibrandy]

Person to speak with is Marissa! She will make it right!!!

 

[charliethetuna88]

That's the same thing that went bad on me water wouldn't pass

 

[Buckeye Field Supply]

What is the micron rating of your sediment filter and carbon blocks? The vendor referred to above, in our opinion, uses a less than ideal approach in what prefilters they use. I know some of their systems use:
10 mic sediment filter
5 micron carbon
1 micron carbon

The concept of decreasing pore size in successive filters is a good one, but it should be applied to sediment filters only. The filter array mentioned above has your two carbon blocks trapping sediment. They will certainly do that, but you want the blocks to stay sediment free so they can do their real job - removing chlorine and other VOC's.

When carbon blocks are used to trap sediment, they clog.

Additionally, unless you have specific water quality issues (e.g., chloramines), you don't really need two carbon blocks. Use a single high quality block with the correct pore size and you'll be fine.

Russ

 

[Awibrandy]

What is the micron rating of your sediment filter and carbon blocks? The vendor referred to above, in our opinion, uses a less than ideal approach in what prefilters they use. I know some of their systems use:
10 mic sediment filter
5 micron carbon
1 micron carbon

The concept of decreasing pore size in successive filters is a good one, but it should be applied to sediment filters only. The filter array mentioned above has your two carbon blocks trapping sediment. They will certainly do that, but you want the blocks to stay sediment free so they can do their real job - removing chlorine and other VOC's.

When carbon blocks are used to trap sediment, they clog.

Additionally, unless you have specific water quality issues (e.g., chloramines), you don't really need two carbon blocks. Use a single high quality block with the correct pore size and you'll be fine.

Russ

Very interesting! So you suggest we use 2 sediments & 1 carbon block?

 

[Buckeye Field Supply]

Not unless you need two sediment filters.

My point is that unless you have some reason NOT to use just one sediment filter and just one carbon block, just stick with a 4 stage system:
sediment filter->
carbon block->
RO->
DI.

If you have heavy sediment loads (i.e., if your sediment filters clog quicker than you'd like), you could use two sediment filters.

Russ