RO/DI Producing Very Little Water

incloud · 09/22/2018, 06:34 PM

Hello everyone, I did quite a few searches and can't quite find the answer that solves my problem. I have the BRS RO/DI 4 stage Unit and it was barely producing any water. The system is about five years old and I regularly change the sediment, carbon, and DI stages accordingly. After recently putting all new filtration in I am still getting a very small drip from my unit so swapped out the membrane for a new one. I'm still getting hardly any water produced. It has been running for 2 days now and hasn't even filled a 5 gallon bucket. I've checked all tubing to be sure no obstructions are present and my water pressure is quite strong coming directly from a faucet I installed directly after my water meter and running to the RO unit. I have no idea what the problem could be and hope that someone here will be able to help me sort this out.

mcgyvr · 09/22/2018, 06:50 PM

Is the flush valve open?
When did you last change the prefilters?. Do you have pressure gauges on it? Like post prefilters,etc...
Temporarily remove all the prefilters and see if it works..only run it for a few minutes like that...
What size ro membrane? 75gpd?

incloud · 09/22/2018, 06:52 PM

I wanted to add a picture of my setup. I have the unit running from my house supply out to a splitter that goes to my ATO first which gets shut off by a float valve and then fills my RO mixing bucket with another float valve. I turn the bucket off with a valve to keep my ATO replenished when not in use. Hope the picture helps and up until now this setup has worked flawlessly. Thanks in advance for any and all suggestions!

Bobby C.
Incloud Design

incloud · 09/22/2018, 06:55 PM

Quote:

Originally Posted by mcgyvr

Is the flush valve open?
When did you last change the prefilters?. Do you have pressure gauges on it? Like post prefilters,etc...
Temporarily remove all the prefilters and see if it works..only run it for a few minutes like that...
What size ro membrane? 75gpd?

When did you last change the prefilters? All new 2 days ago.
Do you have pressure gauges on it? NO
What size ro membrane? 75gpd? 100gpd

mcgyvr · 09/22/2018, 06:57 PM

Flush valve open?..
Faulty filters?..pull all the prefilters like I said to help narrow it down

incloud · 09/22/2018, 07:02 PM

I don't see any type of flush valve on the unit. I've watched videos on fast flush and other flushing techniques but all I seem to have is a small piece that says "FLOW" on it but has no way to flush or turn any valve.

lapin · 09/22/2018, 07:12 PM

In the old days before computers told us everything. You had to start at one end and figure out what is wrong by testing each part.
I would start by seeing what comes out the tube from your faucet. If that shoots out then hook it to the 1st canister filter and see what comes out. Then hook in second canister. See what comes out. Proceed down the line until you find the place where water fails to shoot out.
For me to trying to guess what is wrong, is very hard, not being there.

incloud · 09/22/2018, 07:48 PM

Makes no sense, I just went down and went from the line all the way through the entire unit without pre-filters, took out the flow restrictor, there's a full stream of water coming after the DI section and still no output. Now I'm getting nothing at all but a pretty strong waste stream. I've been troubleshooting this for a few days now and at my wits end. I do not see how it is possible for no water to come out at all.

mcgyvr · 09/23/2018, 06:40 AM

A full stream of water coming after the DI section? huh what do you mean by that?

der_wille_zur_macht · 09/23/2018, 07:56 AM

How much waste water is being produced?

This sounds to me like a bad/missing waste restrictor. You'll get most nothing as product and way too much waste.

incloud · 09/23/2018, 08:14 AM

Well today I took the unit completely out, hooked it up outside to my water hose and went from every point from input to output. I'm not entirely sure what the problem was but it was the resin chamber causing it. I took it apart and carefully put it together and now I'm getting outstanding performance. I think the cap to the resin canister may have been cross threaded and causing pressure loss but I'm not sure. Either way it is working great now and all is good. Was driving me mad trying to figure it out. Thanks to everyone for their feedback and suggestions, truly grateful for the support!

ROB2005 · 09/23/2018, 10:49 AM

Glad you were able to get the problem fixed.

09/22/2018, 06:34 PM	#1
incloud Registered Member Join Date: Dec 2012 Posts: 125	RO/DI Producing Very Little Water Hello everyone, I did quite a few searches and can't quite find the answer that solves my problem. I have the BRS RO/DI 4 stage Unit and it was barely producing any water. The system is about five years old and I regularly change the sediment, carbon, and DI stages accordingly. After recently putting all new filtration in I am still getting a very small drip from my unit so swapped out the membrane for a new one. I'm still getting hardly any water produced. It has been running for 2 days now and hasn't even filled a 5 gallon bucket. I've checked all tubing to be sure no obstructions are present and my water pressure is quite strong coming directly from a faucet I installed directly after my water meter and running to the RO unit. I have no idea what the problem could be and hope that someone here will be able to help me sort this out.

09/22/2018, 06:50 PM	#2
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	Is the flush valve open? When did you last change the prefilters?. Do you have pressure gauges on it? Like post prefilters,etc... Temporarily remove all the prefilters and see if it works..only run it for a few minutes like that... What size ro membrane? 75gpd? __________________ Who me?

09/22/2018, 06:52 PM	#3
incloud Registered Member Join Date: Dec 2012 Posts: 125	Picture of my RO Setup I wanted to add a picture of my setup. I have the unit running from my house supply out to a splitter that goes to my ATO first which gets shut off by a float valve and then fills my RO mixing bucket with another float valve. I turn the bucket off with a valve to keep my ATO replenished when not in use. Hope the picture helps and up until now this setup has worked flawlessly. Thanks in advance for any and all suggestions! Bobby C. Incloud Design

09/22/2018, 06:57 PM	#5
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	Flush valve open?.. Faulty filters?..pull all the prefilters like I said to help narrow it down __________________ Who me?

09/22/2018, 07:12 PM	#7
lapin Registered Member Join Date: Aug 2017 Location: Austin Posts: 801	In the old days before computers told us everything. You had to start at one end and figure out what is wrong by testing each part. I would start by seeing what comes out the tube from your faucet. If that shoots out then hook it to the 1st canister filter and see what comes out. Then hook in second canister. See what comes out. Proceed down the line until you find the place where water fails to shoot out. For me to trying to guess what is wrong, is very hard, not being there. __________________ Tank sizes, 2-10's a 55 and one that's about 500gal Current Tank Info: Interior decorating happening

09/22/2018, 07:02 PM	#6
incloud Registered Member Join Date: Dec 2012 Posts: 125	I don't see any type of flush valve on the unit. I've watched videos on fast flush and other flushing techniques but all I seem to have is a small piece that says "FLOW" on it but has no way to flush or turn any valve.

09/22/2018, 07:48 PM	#8
incloud Registered Member Join Date: Dec 2012 Posts: 125	Makes no sense, I just went down and went from the line all the way through the entire unit without pre-filters, took out the flow restrictor, there's a full stream of water coming after the DI section and still no output. Now I'm getting nothing at all but a pretty strong waste stream. I've been troubleshooting this for a few days now and at my wits end. I do not see how it is possible for no water to come out at all.

09/23/2018, 06:40 AM	#9
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	A full stream of water coming after the DI section? huh what do you mean by that? __________________ Who me?

09/23/2018, 07:56 AM	#10
der_wille_zur_macht Team RC Member Join Date: Sep 2003 Location: NY Posts: 17,749	How much waste water is being produced? This sounds to me like a bad/missing waste restrictor. You'll get most nothing as product and way too much waste. __________________ Inconveniencing marine life since 1992 "It is my personal belief that reef aquaria should be thriving communities of biodiversity, representative of their wild counterparts, and not merely collections of pretty specimens growing on tidy clean rock shelves covered in purple coralline algae." (Eric Borneman)

09/23/2018, 08:14 AM	#11
incloud Registered Member Join Date: Dec 2012 Posts: 125	Well today I took the unit completely out, hooked it up outside to my water hose and went from every point from input to output. I'm not entirely sure what the problem was but it was the resin chamber causing it. I took it apart and carefully put it together and now I'm getting outstanding performance. I think the cap to the resin canister may have been cross threaded and causing pressure loss but I'm not sure. Either way it is working great now and all is good. Was driving me mad trying to figure it out. Thanks to everyone for their feedback and suggestions, truly grateful for the support!

09/23/2018, 10:49 AM	#12
ROB2005 Reefing Is My Passion! Join Date: Dec 2004 Location: Miami, FL Posts: 719	Glad you were able to get the problem fixed. __________________ If at first you don't succeed at reefing, break it down and set back up😁 Current Tank Info: 75 gallon corner overflow, 4-54W T-5 , dozen blue hermits, tiger pistol/yellow watchman goby, royal gramma, banghai and pajama cardinals