BRS 150 GPD Water Saver Upgrade Kit

150 GPD Water Saving Upgrade Kit
Click on image to zoom
View full size image

More Views

  • 150 GPD Water Saving Upgrade Kit
  • Installing the 150gpd Water Saving Upgrade Kit | How To Tuesday

BRS 150 GPD Water Saver Upgrade Kit

99% Recommend this to a friend (182 of 183)

SKU: 200432
Please wait...


1-3 day service on orders over $249

What's this?

Ships today
order in
6h 21m

Quick Overview

Why does BRS recommend this?

The 150 GPD water saving upgrade kit is probably our most favorite RODI upgrade.  If you have proper pressure (65+ PSI) we highly recommend installing the kit, because it will produce water twice as fast as a standard 75 GPD membrane while cutting the amount of waste water in in half.

The BRS 150 GPD Water Saver Upgrade Kit increases the production of any BRS 75 GPD reverse osmosis system to 150 GPD while cutting waste water by 50%. With the installation of this kit water production will increase water production from approximately three gallons per hour to six.


Related Products

Ask a question

Product Questions

yes hi im not sure if my question is worth asking or not but i was just wondering if it would be better or defeating the purpose of the water saver RO add on.......wondering if it would be better to split the water line going into the first RO so it goes into both RO units then each have there own waste water discharge ? im just concerned that the waste water coming out of the add on RO unit and going into the second one is all bad water which to me seems like its going to make the second RO go bad a lot faster then the first? and also whats the best PSI to run the unit with the water saver add on, 65psi or is there a more optimum PSI and 65 psi is just the minimum? i get well over 150 psi coming out of my tap.
Question by: Tony on Mar 3, 2014 6:50:00 PM
Hi Tony,
If you split the incoming water going going into the membranes then you basically just have two RO/DI units and would have double the amount of waste water. In that situation it would actually just be better to swap it out for a single 150gpd membrane because you would have lower replacement costs in the future.

Keep in mind that while the waste water feeding the second membrane is higher in TDS then the first membrane, because of the waste water ratio its really not that much of a difference. If for example you had 100TDS going into the first membrane, the waste water coming out and going into the second membrane would likely be around 120-130tds. Assuming the membranes get there normal 98% rejection rate, that means the first membrane would produce water at 2 tds and the second membrane would produce water at 2.6 tds (so the average total tds being 2.3. As you can see, not much of a difference.

The reason we only suggest this unit for systems with relativly low TDS to begin with though is that this effect is amplified the higher the TDS, at 500 tds your actually getting into the range of a few TDS instead of fractions of a single TDS, though even at 500 TDS your looking at 10 out of the first membrane, ~12 out of the second for an average of 11 (and a difference of 1).

RO membranes run better at higher pressures though you shouldn't exceed the 80psi maximum on the unit itself. I would double check the number on the incoming water pressure though as the 150 might have been a different unit of measurement then PSI. Its certainly not impossible to see numbers that high in some areas but 150psi is into exploding pex, toilet, refrigerator, and washing machine territory :-) In fact I think plumbing code in most places is 80psi maximum or your required to have a pressure regulator (may be different in your area though).
Answer by: Bulk Reef Supply on Mar 3, 2014 6:50:00 PM
1. What is the reason for this upgrade not being recommended for a drinking water system?

2. I have the 5-stage 75 GPD drinking water unit, but do not use the spigot or water tank that came with the system. Would the recommendation to avoid using the 150 GPD upgrade for this drinking water system still be valid?
Question by: Zach Jones on Feb 7, 2016 12:28:00 AM
Great question!
The water saver upgrade will cause issues with pressure on the tank and drinking water section. In addition the second membrane will have inherently higher TDS from running on the waste water of the first membrane. This would still effect your drinking water. As an alternative the single membrane may be switched to a 150 GPD membrane while also changing the flow restrictor to the correct size for a single 150 GPD restrictor.
Answer by: Connor (Admin) on Feb 10, 2016 6:52:00 PM
I saw somewhere on here that you shouldn't add this kit if you are using your ro/di for drinking water as well. I was wondering why?
Question by: DJ on Feb 7, 2016 12:00:00 PM
Great question!
In short the second membrane has a negative impact on the pressurized tank and causes issues in the system and pressurized tank. In addition the second membrane is running off of the waste water of the first membrane and will inherently have a higher TDS. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 10, 2016 6:34:00 PM
I have a 100 gpd RO/DI unit. I want to use the upgrade kit which is only for 75 gpd units. If I order the kit and purchase a separate membrane that has a rating of 100 gpd to go inside the casing, would this work? Also, would I need to flush the new membrane for one hour like I did for the original installation?
Thanks so much,
Shara Armstrong
Question by: Shara Armstrong on Jan 26, 2016 11:31:00 AM
Great question!
You would need the kit plus the 100 GPD membrane. in addition the flow restrictor from your current units waste line will need to be moved to the waste water of the second membrane. The new membrane will need to be flushed as with the original. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 3, 2016 1:31:00 PM
Will the 150 GPD water saver work with a 50 GPH RO system? I'm assuming if it does that it would bring the output down to 125 GPD.
Question by: Jeff on Jul 10, 2014 7:17:00 AM
Hey Jeff,
Unfortunately it would not. The membranes need to be the same size otherwise the flow restrictor would be mismatched to one membrane or the other.
Answer by: Bulk Reef Supply on Jul 10, 2014 7:17:00 AM
Sir, I have a 100 gallon per day system Am I able to use the 150g per day water saver upgrade kit on it? It says in the overview its for a system that is 75gallons per day. so I wasnt sure. If so how many gallons a day would it be.
Thanks George
Question by: George on Jul 10, 2014 8:57:00 AM
Hi George,
Unfortunately it has to be a 75gpd system because the membranes have to match. If used with a different sized membrane the flow restrictor would be a mismatch to one membrane or the other.
Answer by: Bulk Reef Supply on Jul 10, 2014 8:57:00 AM
I'm sold on the need for this RO upgrade kit for my BRS 75 gal RO DI filter but my hesitation comes from plumbing in my membrane flush kit. I think I understand how membrane flush kit will be plumbed in, though not real clear on it. None of the videos seem to address this. Can you explain the hook-up for me? Thanks!
Question by: Bob on Jul 11, 2014 4:36:00 AM
Hi Bob,
When you install the kit you move the whole waste water assembly to the new membrane housing. The flush kit and flow restrictor go along with the tube. If you have a flush kit it will continue to work and will flush both membranes. As far as installation goes, just follow the instructions as if it isn't there, it doesn't change the process any :)
Answer by: Bulk Reef Supply on Jul 11, 2014 4:36:00 AM
Hi there I ordered the 150 gallon upgrade to my RO system at home( for drinking purposes not for a reef ) I just ordered it so I have not received it yet but I was curious to further eliminate all waste can I put a auto shut off valve with the float on my barrel I'm saving the waste water in? Will that essentially shut off the RO system or will it cause damages to my RO unit? Thanks for your time!
Question by: Nick on Mar 17, 2016 1:13:00 PM
Great question
If you were to plug in a float valve on the waste water and the container was completely full and no waste water would come out it would cause damage to the membrane as that is now the only exit for the water. This will result in much lower quality water making its way through the membrane. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 18, 2016 9:56:00 AM
The pressure gauge on my 5 stage plus reads between 60-70psi (varies based on time of day, and apparently, ambient temperature..go figure).

Anyway, is that gauge before or after the first membrane? I'm trying to figure out if I'll need to get a booster pump with this.
Question by: Dariush on Jul 21, 2014 5:14:00 AM
Hi Dariush,
That is the acting pressure on the membrane (which will be the same between the last carbon block and the flow restrictor). No bosoter pump is needed :)
Answer by: Bulk Reef Supply on Jul 21, 2014 5:14:00 AM
My RO/DI unit has the membrane flush kit. will I have to remove that to install the upgrade?
Question by: Josh on Jul 30, 2014 4:28:00 PM
Hi Josh,
You will not have to remove it. You will just move it like you would the flow restrictor on a normal unit and then it will function to flush both membranes.
Answer by: Bulk Reef Supply on Jul 30, 2014 4:28:00 PM
I'm really interested in this but this is what I've got. Tds out of tap is 380. Water psi is 57. Is there such a thing as a pre-filter before my ro/di? Am I going to need a booster pump togain 3 psi for this? Thanks
Question by: Shaun on Aug 1, 2014 4:47:00 PM
Hi Shaun,
No booster pump would be necessary here. The only real concern would be the TDS levels. With the TDS that high you may see a noticeable difference in the rate of DI consumption after adding the unit. You will still get 0 TDS water out of the DI resin though, it just won't last as long.
Answer by: Bulk Reef Supply on Aug 1, 2014 4:47:00 PM
How to install it. With so many variation I am concerned in doing it proper. My TDS does not exceed 4 I try to keep it as low as possible for my 225 reef tank and worry about making any changes..but I see benefit from this product. If I sent you schematic of my system could some one send me schematic on proper hook up. Thanks Ron
Question by: Ron sorenson on Mar 7, 2016 7:48:00 PM
Great question!
I have included a link below to our instruction videos. This will walk through the process. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 9, 2016 6:34:00 PM
I don't have a BRS system at this time, but that shouldn't matter for the purpose of my question. I've got a 90 GPD 4 stage system, splitting off a pressurized drinking tank between the membrane and DI. I'm considering dropping to a 75GPD membrane and getting the BRS 150 GPD kit. First question, is it possible to "downgrade" my current membrane to the 75 GPD? Second question, why do you mention at the end of your description that this upgrade is not recommended with drinking water systems? Is it due to the increased membrane output TDS, or is there another reason?

Question by: Tim K on Feb 1, 2016 9:44:00 PM
Hey there Tim!
Great question. It is certainly possible to switch from a 90 GPD membrane to a 75 GPD by switching the membrane (The housings are the same size) and switching the flow restrictor on the waste water line to our 75 gallon (550mL) flow restrictor. The reason the water saver upgrade is not recommended is there is an issue with actual water being saved when installed with a pressurized tank, The back pressure from the tank will cause the waste water ratio to remain the same as with a single membrane. So the water saving aspect of the membrane is neglected when used in conjunction with the tank. It will still function and even speed up the process of filling just not reduce the waste water. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 26, 2016 7:43:00 AM
Hi, is this the upgrade kit for BRS 5 Stage RO/DI System - 75GPD which I purchased before. And is it really can cut down the amount of waste water by 50% as I have watched the video by Mr. Saltwater Tank??
Question by: Evan on Mar 22, 2014 11:04:00 AM
Hi Evan,
That is true. Assuming you have enough water pressure (65psi) and water temp, the kit would allow you to produce twice as much product water for the same amount of waste water (ie, cut your waste water in half).
Answer by: Bulk Reef Supply on Mar 22, 2014 11:04:00 AM
I have a APEC Water ROES-50gpd System
Will the BRS 150 GPD Water Saver Upgrade Kit work on the apec 50gpd system?
Question by: Wasim on May 3, 2016 10:46:00 AM
Not really,
In order for the 150 gpd upgrade kit to work you would need to change your current membrane to a 75GPD membrane and the flow restrictor to 550mL. After these adjustments have been made you can add the kit on.
Answer by: Connor (Admin) on May 3, 2016 4:52:00 PM
Hi, I have a 75 GPD setup with a 550 flow restrictor. If I upgrade to the 150 GPD, do I need to change the restrictor to a different size?

Thank you.
Question by: MICHAEL DONLEY on May 17, 2016 9:00:00 AM
Great question!
This kit will actually only add another 75 GPD membrane and not switch the membrane meaning your flow restrictor will be the same as you currently have (550).
Answer by: Connor (Admin) on May 18, 2016 2:38:00 PM
the install video dose not seem to be working. Can you send me some instruction on how to install this upgrade.
Thank you
Question by: Mike on Jun 9, 2014 8:38:00 AM
Hey Mike,
Does this link to the installation video work for you?

Video is really the easiest way to do this but if your computer does not have the ability to play YouTube video's just let us know and we will get you figured out.
Answer by: Bulk Reef Supply on Jun 9, 2014 8:38:00 AM
ok so i know you say not to put it on if you are using it for drinking water. i am on city water and have about 70 ps pressure. we use it to make the water better then the city and the carbon filters should do virtually the same as those pitcher filters so i dont see why the caution. also what affects on the pressure tank? i ask because i have a one way check valve on the line going out to the pressure tank that is plumbed in after the ro membrane and before the DI. what effect have you seen when using it with a pressure tank for drinking water?
Question by: charles on Apr 7, 2016 11:51:00 AM
Great question!
Th 150 GPD upgrade kit should not be used on the drinking water systems as it will not reduce the amount of waste water being produced. The pressure will have the same ratio as a single membrane. Additionally the Tank will have a short life span. The TDS from the second membrane will increase allowing for a higher amount of TDS into the drinking water. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 7, 2016 10:31:00 PM
What would be the correct size flow restrictor with this kit Now that your running two 75 GPD membranes?
Question by: Jeremy on Apr 20, 2016 9:52:00 PM
Great question!
The flow restrictor will remain the same as the water flowing through both membranes will still need to be the same. The 550mL flow restrictor is recommended.
Answer by: Connor (Admin) on Apr 26, 2016 2:41:00 PM
Wondering if this addition would work on a 50gpd unit made by another manufacturer?
Question by: Zach on Apr 22, 2016 5:57:00 AM
Great question!
This will include a 75 GPD membrane and as they are different sizes the unit will either need another 50 GPD membrane instead to match the current flow restrictor or the flow restrictor and current 0 membrane will need to be changed to work with a 75GPD.
Answer by: Connor (Admin) on Apr 26, 2016 6:34:00 PM
Will the membrane flush kit effectively flush both membranes when used with this upgrade? Also is it still possible to use a DI bypass valve?
Question by: Mark P on Jan 13, 2014 3:02:00 AM
Hi Mark,
It sure would. It also wouldn't make any difference to whether you choose to bypass the DI (or just disconnect the DI altogether).
Answer by: Bulk Reef Supply on Jan 13, 2014 3:02:00 AM
I have the BRS 5 STAGE PLUS RO/DI SYSTEM - 75GPD, will I need another flush kit if I do this upgrade?
Question by: Jason on Mar 21, 2014 2:37:00 PM
Hi Jason,
Fortunately you will not. Both membranes operate off the same flow restrictor and thus only the existing flush kit is needed.
Answer by: Bulk Reef Supply on Mar 21, 2014 2:37:00 PM
Does this kit come with a flow restrictor?
If not would I need the 75 gpd or the 150 gpd flow restrictor.
Question by: Glenn on Nov 11, 2013 8:42:00 AM
Hi Glenn,
It does not but you actually don't want to switch your floor restrictor. You want to stick with the same 75gpd restrictor you have.
Answer by: Bulk Reef Supply on Nov 11, 2013 8:42:00 AM
I was wondering which is better for water quality and less waste water, the 150gpd upgrade kit, or the 150gpd membrane by itself? Also, if I add the auto flushing valve, do I use the one for a 150gpd membrane, or the one for 75gpd membrane on this kit? Thank you.
Question by: Paul on Oct 1, 2013 6:43:00 PM
Hey Paul,
It depends on what your main goal is. The 150gpd upgrade kit is better for waste water but will technically create slightly worse quality of water (though unless you have very high TDS to begin with it would be unmeasurable difference to most). If you do have high TDS though we wouldn't recommend the 150gpd upgrade kit.

For an auto flush valve/flow restrictor you would want the proper size for the membrane(s). If you use the 150gpd membrane you want the 150gpd size, if you are using 75gpd membrane(s) then you would want the the 75gpd size.
Answer by: Bulk Reef Supply on Oct 1, 2013 6:43:00 PM
Could I use this for my 5 stage deluxe, with the drinking add on? I use my 5 stage for both my reef tank and to supply water to my fridge.
Question by: Derrick on Oct 20, 2013 8:22:00 AM
Hey Derrick,
With the drinking water add-on you will have a lot more back pressure which would make the dual system a lot less efficient. If your goal is to reduce waste water you would likely be better served by a permeate pump. The permeate pump uses the pressure from your waste water to reduce the effect of the storage tanks back pressure. This will make your existing membrane more efficient and allow you to get more pressure in the tank as well. Its compatible with systems up to 100gpd.
Answer by: Bulk Reef Supply on Oct 20, 2013 8:22:00 AM
I have the BRS 5 STAGE PLUS RO/DI SYSTEM - 75GPD My water pressure gauge is reading 43lbs, In your viedo you say that i need 65 lbs going in to the unit . Was wondering if the 43 lbs is enough pressure for the BRS 150 GPD Water Saver Upgrade Kit to work. I am not really sure where the gauge is at on the BRS 5 STAGE PLUS RO/DI SYSTEM - 75GPD I am guessing that it is after all the membranes to be able to tell when they need change. Can you please let me know if you think this will work or will I have to get a booster pump? Thank You Michael
Question by: Michael on Oct 2, 2013 4:26:00 PM
Hi Michael,
The 150gpd water saving upgrade kit requires 65psi. If your unit only has 43psi then you would need to increase the pressure to 65psi to add the kit so a booster pump would be necessary.
Answer by: Bulk Reef Supply on Oct 2, 2013 4:26:00 PM
I've read that if you cut down you waste water you will blows thigh RO filters as well as DI filter faster. If there any truth to this? I live the speed and my last water is so much lower. Just not sure I want to blow though the filters if there is any truth to this..

Question by: Robb and Trudi on Sep 17, 2013 11:55:00 AM
Hey Robb,
Its true that artificially restricting the amount of waste water (which is really flush water) a membrane receives will likely reduce the membrane lifespan and increase the TDS of the out-coming water which will decrease the lifespan of the DI resin as well, though it shouldn't have any sort of negative effect on the prefilters themselves.

Its important to note that this is NOT how the 150gpd upgrade kit works though. The 150gpd upgrade kit adds a second membrane to reprocess the waste water of the first membrane. With the kit each membrane actually continues to get the minimum amount of flush water (actually one of them even gets extra flush water).
Answer by: Bulk Reef Supply on Sep 17, 2013 11:55:00 AM

Full Details

The BRS 150 GPD Water Saver Upgrade Kit will also work with different brand 75 GPD reverse osmosis systems. The kit requires 65psi into the first membrane in order to function properly. If your home's water pressure is less then the recommended psi a booster pump will be necessary.

If you are purchasing a reverse osmosis unit from us at the same time as this 150 GPD Upgrade Kit please mention in your order comments if you would like us to install the unit for you.  If you select this option, there may be a one day delay in shipping your order due to additional time considerations. 150GPD water saving upgrade kit is not recommended for units with high TDS or drinking water systems

Kit includes:

  • Dow 75 GPD membrane
  • Two 2.5" x 2.5" membrane clips
  • Two 1/8" x ¼" 90 degree elbows
  • 1/8" x ¼" 90° check valve
  • RO membrane housing
  • ¼" tube splitter
  • 5 Feet of Red, White, Blue and Black RO Line



Items 1 to 12 of 183 total

  1. 1
  2. /
  3. 2
  4. /
  5. 3
  6. /
  7. 4
  8. /
  9. 5
  10. ...
  11. 16
  • RO/DI upgrade By kingspeed on 4/30/2016

    Added this to my existing 75GPD system, I can make 10 gallons of water an hour with only 5 gallons of waste water. It use to be the other way around and it would take 3 hours to make 10 gallons.
  • Awesome upgrade! By Tyler on 4/21/2016

    Not only is it priced well, it's also a great addition to your RO/DI system! Very easy to install, especially with the BRS video.
  • Don't Wait By Brett on 3/6/2016

    I put off buying this upgrade for 6 months. I wish I would have done it upon initial purchase now! At 65psi my 44 gallon Brute fills up over night while I sleep. Instead of the next few nights.
  • BRS 4 Stage value plus upgrade By Roy on 3/6/2016

    Excellent product water and easy to install also added a second carbon block and di canister with BRS products 100% satisfaction thanks BRS
  • Why didn't I do this sooner? By Oz on 2/15/2016

    This kit bumped up my 50 gpd to 125 gpd.
  • Clear difference By Navy Chief on 2/11/2016

    Outstanding! The difference is clear to how quickly my RO/DI container fills. And with less waste will save me money in the long run. I have the waste line running to my discharge sump which waters my lawn. Very nice!
  • Great product By jeffrey on 2/7/2016

    I picked up one of these back in 2015 on Black Friday . Wow !! I'm making water now twice as fast and have knocked 20 bucks off of my water bill !! I have it hooked up to a spectapure 90gpd unit with a back flusher on it , had to think a little bit harder to get it plumbed in properly. But once I got it going it works great !!! Definitely buy one of these if your wasting water !!!!
  • Should have bought this at the beginning By dmolavi on 2/2/2016

    I got tired of waiting for almost 2 hrs for 3 gallons to be made. This cut it down to almost 45 minutes. I can't recommend this highly enough.
  • Just read! By Sam on 2/1/2016

    I wish I had just bought the 150gpd from the start. I didn't realize how slow 75 a day was.. It took hours to fill a 5 gallon jug. Thankfully since I didn't do it from the start this upgrade exists!
  • Get it now! By jsbull on 1/2/2016

    This thing is awesome. Easy to put together after watching their video and works wonderfully.
  • A Really great Product By 2manyhobbies on 12/27/2015

    I watched the video on BRS TV and followed their instructions. It all snapped together perfectly and I am now producing water in half the time. The best thing to come along in quite a while.
  • Great product addition! By JR on 12/21/2015

    I am on a well with low pressure so I added a booster pump and with this recently purchased additional RO section I am getting about 10 gal per hour at 0 TDS. Input TDS is only about 20 max, my waste is very low and the resin is lasting much longer. Well worth the money.

Write Your Own Review

You're reviewing: BRS 150 GPD Water Saver Upgrade Kit