RO/DI high reads

[Blue Spot Octopus]

Hello I just changed out 2 of my RO membranes, prior to doing this my numbers were pretty good, but they are old. So I put two membranes in and now all of my numbers are 275 plus, even just prior to the DI reactors. I put them in a couple of times to try to re seat them, I also used a mallet and a stick to get a better seal but to no avail. Any ideas?

 

[Bulk Reef Supply Verified Sponsor]

Can you post some photos of how you have the membrane tubing hooked up after the replacement?

 

[Blue Spot Octopus]

 

[Blue Spot Octopus]

 

[Blue Spot Octopus]

So I just tried to re set the RO membranes and this time I used a dab on silicon, so I am flushing the unit again, I flushed it for over an hour yesterday and I am flushing it again.
So all of my filters are either brand new or 3 months old except the first DI.

 

[Bulk Reef Supply Verified Sponsor]

The membrane plumbing in your photo looks to be correct, so we can rule that out.

What I would suggest is to isolate each membrane so that you an identify if one, or both, membranes are the cause for the issue. In other words, remove the water saver membrane and test the one membrane on it's own. If it functions normally, you know that membrane is good to go. If it doesn't, then that membrane is the problem. Then swap the membranes to test the other.

Alternatively, if you have a hand-held TDS meter, you can simply unhook each product line from the y fitting after the membranes and test each one for TDS. If one is high, then it's likely that's where the issue is coming from.

The likelihood of both brand new membranes being bad would be very very low.

If you do find that one of the membranes is faulty, our customer service team can certainly get a replacement sent out.

 

[Blue Spot Octopus]

I just flushed it again 295 coming in 225 going towards the DI.

 

[Blue Spot Octopus]

First test with single membrane RO, 289 in and 225 going to DI, brand new.

 

[Bulk Reef Supply Verified Sponsor]

First test with single membrane RO, 289 in and 225 going to DI, brand new.

What about with the other membrane? Are you seeing normal results there?

 

[EeyoreIsMySpiritAnimal]

Are you positive you didn't put the membranes in backwards? (Ask me why I'm asking this, lol!)

 

[Blue Spot Octopus]

How do I know if they are in backwards?

 

[Blue Spot Octopus]

Ok they are not installed backwards.

 

[EeyoreIsMySpiritAnimal]

How do I know if they are in backwards?

Look at the manual or Google the RODI and look at pics of the installation

 

[EeyoreIsMySpiritAnimal]

Ok they are not installed backwards.

That was fast, lol

 

[Blue Spot Octopus]

Second new RO filter 281 in and 225 going to DI

I will test the old RO filters now.

 

[Blue Spot Octopus]

Erin1971Texs I re watched the BRS video again.

 

[Blue Spot Octopus]

So I put the oldest RO filter back in,
The system seems plugged.

 

[Blue Spot Octopus]

So now I noticed one of the elbow for the inlet on one RO casing is not plugged,
The other I do not get any water out of the waste only water to the DI.
It is getting way to hot to keep working on it for the next couple of hours, please check back tomorrow, I have to get this working. Thanks again. More to come.

PS I did check with my handheld HM Digital same reads.

 

[Blue Spot Octopus]

Old RO filter 330 in and 214 out.

New RO filter #1 Ro filter single unit,
It took 4 minutes to fill a 24 oz container with reject water.
Took 1 minute to fill the 24 oz container with RO water.
330 water in 239 water out.

New RO filter #2
It took. 3:49 to fill the 24 oz container with reject water 264 handheld device.
It took 45 seconds to fill the 24 oz container. 229 or 269 depending on which tester with 330 in.
So 330 in and 229 out

 

[Shirak]

You have something majorly wonky there if you are getting 24oz of ro in 45-60 seconds and 24oz waste water in 4 minutes