- BRS 2 Part Doser - 1.1 mL per minute
Why does BRS recommend this?
The BRS 1.1 mL dosing pump is a very cost-effective yet long lasting stand-alone dosing pump for trace elements and 2 part. By hooking the pump up to a simple timer or aquarium controller they can be one of the most inexpensive ways to get an automated 2 part dosing system. With their peristaltic design, they will not back siphon with extremely accurate flow rates.
Each pump is capable of dosing a single solution. You will need two pumps to automate both calcium and alkalinity solutions.
Timer not included
BRS 2 Part Dosers are intermittent duty pumps and not meant for continuous operation. We recommend on/off cycles under a few hours to maximize lifespan. You will need two pumps in order to dose both calcium and alkalinity. When used with controllers like the ReefKeeper or Apex, we recommend connecting these to a mechanical relay outlet, and not a TRIAC outlet on the controller's power bar.
- Silent operation
- Extremely accurate
- Will not back siphon
- 12-month tube life (at 4 hours of use per day)
- 24-month Bulk Reef Supply warranty on pump motor and head
Max Head - 20ft
Average Output - 1.1mL per Minute*
Dimensions - 4" x 3.25" x 4.5"
Power Consumption - 3W @ 120VAC
Tubing Type - Santoprene
*On average BRS 2-Part Dosing Pumps will output 1.1mL per minute but may vary depending on your supply of power and what other equipment is being run off of the circuit. We do suggest running the pump for 10 minutes and collecting the liquid from the output to know how much the pump will dose in a 10-minute time frame. Simply dividing the total output by 10 will let you know how much the pump will dose per minute of operation.
1x 1.1mL Dosing Pump
1x Pump Mounting Bracket
1x Mounting Bracket Screw Set
17 FT 1/4" OD Dosing Pump Tubing
1x Instruction Set
Inconsistent By Joe on 2/9/2019Joe wouldn't recommend this product to a friendI bought one of these several yeara ago and it hasnt given me any problems. I bought a second one recently bc i needed a dosing pump that woukd dose at the same rate as the one I have. Needless to say the new one runs at a toraly different speed. The new ones doses more then 2 ml a minute opposed to the 1.1 that is advertised. Then there is no way to calibrate or adjust the pump so thr flow rates are the same. The pump is durable but if you need somethi g that is consistent over multiple pumps or adjustable dont use this pump.
JUNK By Thanh on 1/20/2019Thanh wouldn't recommend this product to a friendBought this many years ago but tank crashed. Used it only a couple times, starting my tank back up and is not able to pull liquid. I purchase a new tube thinking it was related, WRONG! now it wont even pick up liquid.
Go buy a aqua lifter and not this junk.
Great pump By Rick on 12/20/2018Rick would recommend this product to a friendI’ve been running two of these for a little over a year and work great. One doses 1.8 other 2.0. I check them from time to time(3 times sense I bought them) and they read the same as out the box. It’s not the 1.1ml but they stay accurate and that’s all that matters to me. Love them!!!
Superior Quality By Charles on 10/29/2018Charles would recommend this product to a friendThis is a very well made pump. I have had it for 9 months and have had no issues with it at all. The pump is extremely quiet and works flawlessly. I'm dosing Kalk with it and have it set at 1.5 ml per min. set on a timer for 15 mins every 6 hours. Great pump and a great price.
Great doser By Chad on 9/30/2018Chad would recommend this product to a friendSo far so good. Mine like others was putting out 1.8ml a minute but it has been working as advertised other than that. At times it can be a little noisy and others silent. Not sure why.
Works well; average flow of units 1.8 ml/min By Luke on 8/1/2018Luke would recommend this product to a friendI just received and calibrated four units to start dosing Triton Method. The pumps seem to be of good quality; really liked the mounting bracket. The quick setup guides by Bulk reef were a nice addition and well done. The only reason I didn't score five stars was all four units delivered considerably more than 1.1 ml/min. (1.8, 1.8, 1.92, and 2.0) It's not a problem because everyone should calibrate and not assume 1.1 ml/min delivery.
Excellent By K-Ce on 7/20/2018K-Ce would recommend this product to a friendVery easy to install and set up, and works as attended. So far I have three.
More like 2ml/min By Ryan on 6/8/2018Ryan would recommend this product to a friendI have 2 and they both are just over 2ml/min. The pumps are well made and I like the mounts. Would be a 5 star if better calibrated or advertised with accurate measurements.
like this pump By Jeff on 6/1/2018Jeff would recommend this product to a friendI agree with other reviews. Mine calibrated at 2ml/minute. very quiet pump. Been running for only 4 days now but so far so good.
Solid Peri pump for the money By FLSharkvictim on 6/1/2018FLSharkvictim would recommend this product to a friendI use one for my Avast Kalk stirrer/reactor to keep my PH stable... I run one line to my saltwater mixing station RODI barrel and my other line runs around the house and goes to my into my sump.. I have had the Bulk Reef Supply 2 part doser now for over 2 years and it runs like the day I bought it.. Mine is set up on a timer to run my KALK for 15 minutes and then shuts of with a Digital timer. I have on the reverse CYCLE of my main AI LED's lights which are from like 12pm till 10am. I haven't needed to replace any parts what so ever. Another Big fat thumbs up for BRS to be able to source a 3rd party solid pump that produces results for a very affordable price. Yes, i approve this message and would HIGHLY recommend it for dosing Kalkwasser...LOL
Rock solid By Alex on 5/10/2018Alex would recommend this product to a friendI love these pumps. I've had them up and running for about a month now and they have eliminated any fluctuations in my Alkalinity and Calcium levels. One thing that I wish they would advertise more is that these pumps do not necessarily run at exactly 1.1mL/min. One of mine is 1.8mL/min and the other is 1.7mL/min. Make sure you calibrate each pump before use and don't just assume they will run at the advertised rate!
Would highly recommend By Ferrell on 4/27/2018Ferrell would recommend this product to a friendGreat value! Bought two to begin two part dosing, calibrated, connected to apex and works great. One was very loud and caused concern but BRS was right on top of it and shipped a new one, no questions asked. Really appreciate the great service and products offered.
Special Price: $11.69
Special Price: $10.00
Special Price: $11.69
Will your BRS two part doser include two pumps and be able to dose both parts from separate bottles for 74.99
No the pumps are sold per pump. To have two pumps to dose two liquids you would need to purchase a quantity of two pumps.
Is the pump tube replaceable? if so do you sell the replacement tubes?
It sure is. You can find the replacement tubes at the link below:
I received my pumps today. I noticed in the package was two different types of hose. One was clear and softer than the other which was not clear and more rigid. Is one hose meant for input into the pump and the other for dispersing the fluid from the pump?
You can use either. The rigid tube doesn't bend as easy but holds its shape better, wheras the soft tube is easier to route around corners, etc but kinks a bit easier. Feel free to use either in whichever application is better suited.
What size of tubing fits on this doser? And does the input tubing different from the output tubing?
Input/output tubing are the same and both are 1/4" though its a compression fitting so its fairly forgiving if your close.
Can you order more tubing? I'd like to relocate my dosing pumps and need new tubing.
This stuff will do the trick just fine (most use clear).
Hi Can this used to dose Vodka? I need dosing 0.1 to 0.5 ml a day. Please let me know what else to get for setting up this doser ?
While this pump is very consistent in dosing, due to the rotational cycle, there tend to be natural pauses as the rollerblocks take turns in compressing the tubing, which results in variation in fluid dosing speed during a single 1 minute rotation. As a result, when run for full minute cycles, you'll see good consistency, but it will not be very effective at running for less than a minute when trying to dose very small amounts of fluid. For this, we would normally recommend a pump with a high precision stepper motor or at the very least a dosing pump with more than two rollerblocks, such as the Drew's Doser, in order to reduce the momentary pauses during rotation.
Have a great day!
How long is the power cord to the BRS pump?
My BRS dosing pump is working, but is not drawing solution from a 1 gal jug. What could be the reason for this? The jug is about half full and has a small air hole. Thanks
Most likely the issue is the tubing leading to the pump or the tubing inside of the pump is not air tight which allows the suction to break. You will want to inspect all tubing to ensure there is not air leaks for the siphon to break.
Is this doser support 220V power
What is the average life span of this pump and are the critical parts replaceable
These will last quite a while from 3 years and up without over use or abuse. They come with a one year warranty. Currently there are replaceable tubing however no electronic or mounting replacements.
Can this dosing pump be used to dose frozen food?
It certainly can however depending on the placement of the tubing if you are not using a specially DIY fridge to keep the tubing from sitting in the open the pump will draw food and as it stops the food that remains in the tubing will begin to rot and cause big issues. You will want to checkout some forum posts on building a fridge with a venturi to grab the food into a separate feed pump which circulates in the fridge keeping the frozen food cooled until it enters the tank. Feel free to let us know if you have any further questions!
What pump would you recommend to use? I have a 180 gallon aquaruim if that makes a difference
It depends on what you are doing. Assuming you want to dose something like two part, this doser would be the best route to go because of the relatively small quantities being dosed.
Do these pumps need to be calibrated before using? How is this done?
There is no calibration for these pumps as they are a fixed dosing rate peristaltic pump. :-)
Can this doser be used safely with Red Sea NOPOX?
This can be used with a timer to dose a small amount of NoPox throughout the day. Feel free to let us know if you have any further questions!
Mine does 0.75ml per minute. The output tubing side seems to get air bubble all the time (sometime fews, sometime alot here and there in 6" output tubbing), does air bubble in tubing affect the dosing rate? Will doser replacement tube help get rid of air bubbe and back to 1.1 ml per min dosing rate?
I dont no anything about dosing, How do you know how much to dose? What to dose? How do you program it? Any other tips?
The pump itself doesn't have any programming. It just doses 1.1mL for every minute it is turned on. You adjust how much it doses by changing how long a timer turns it on. As for how much to dose, what were you planning to dose?
I am new to the reefing hobby. I dose 10ml of vinegar per day in my 40G tank to keep nitrates down. Could I use a pump like this while I am gone on vacation for a week?
Have a great day!
What are the dimensions of this pump?
It measures 4" x 3.5" x 4" Tall
I bought these pumps with my reefkeeper lite, and I thought I would be able to connect them to it. It says not to, so what should I do?
The dosing pump can be used with the reefkeeper as long as it is plugged into the relay outlet which has the ability to power the pumps. Feel free to let us know if you have any further questions!
One of my dosers suddenly stopped working/rotating. I want to start from scratch- How do I "prime" the doser? I'm starting them over from scratch and don't have the instructions anymore.
To prime the pumps you will simply attach the full amount of tubing from the container to the aquarium, You will then turn the pump on and allow it to fill with the solution. Once the solution starts coming out the other side you will want to run it for a few minutes to remove and air gaps. Keep in mind this can take some time and we recommend pumping it into another container instead of the tank itself.
I have the nano cube 28 with stand, and was wondering if I could place the 2 part solution in my stand, and have the pumps deliver the water into the sump area of the back of the nano cube. The water would need to be pushed about 48 inches up. Thanks!
These pumps can pump up to 20ft of head pressure. Going up from the stand to the tank would be no problem at all!
Do these have timers? How would you define when & how much to dose?
These pumps do not include any sort of timer. They will need to be controlled with a digital timer capable of operating at 1 minute intervals (or less) or an aquarium controller like the ReefKeeper of Neptune Apex.
Here are the digital timers we carry.
I hope this helps!
Have a great day :)
What are the dimensions of the unit?
The dimensions of our 1.1 ml/min and 50 ml/min dosing pumps are 3 1/4" W x 4" H x 4" D.
The mounting plate should allow for flush mounting on the wall so the depth measurement will remain the same.
I hope this helps!
Have a great day :)
How do I tell when the pump's life has expired and it is no longer working? How will performance change over time?
The physical motor will last a long time and as long as it is spinning it will work well. The surgical tubing inside however may wear down and crack. If the pump is ever not able to draw liquid up you will want to inspect and replace the tubing inside. Additionally over time this tubing will stretch and change the amount of liquid dosed and measurement will need to be taken to test how much it is dosing. This can be a s simple as taking the tubing out of the tank, turning the doser on for 10 minutes and measuring how much liquid is dosed in 10 minutes.
Under the full details tab for this product, the following statement is made " When used with controllers like the ReefKeeper or Apex, we recommend connecting these to a mechanical relay outlet, and not a TRIAC outlet on the controller's powerbar. " What does that specifically mean? I don't what a TRIAC outlet is and if it is not connected to the powerbar how does the controller turn the pump on or off?
The 1.1 mL Dosing pumps will need to be physically plugged into an outlet to turn on. With some aquarium controllers they use different types of outlets to turn the outlet on and off. TRIAC switches can switch power very quickly and silent, where a relayed outlet makes a clicking noise and takes about a half a second to react. TRIAC outlets can have a hard time detecting power and turning the dosers and other low power consumption items on and off reliably, where the relayed outlets are very reliable for almost all items. If you don’t have an aquarium controller it shouldn’t be a concern since most digital and analog timers are going to be relay driven. If you are using an aquarium controller just refer to the controller’s manual to know what outlets are TRIAC and which are relayed.
In the description above "When used with controllers like the ReefKeeper or Apex, we recommend connecting these to a mechanical relay outlet, and not a TRIAC outlet on the controller's powerbar." The Apex 2016 description says that all outlets on the power bar are relay: "This means that we could now switch all AC outlets to relay switching." Could you clarify for me?
Can the doser be mount below the end of the dosing line? I am planning to place me dosers under the tank and the outlets of the doser to the main display tank...which is above the doser level.
That isn't a problem at all :-)
After calibration one of my pumps doses 1.9ml per minute and the other 1.7ml per minute, not the 1.1 as indicated. Looks like others have had similar findings. Is this variability expected with this product?
Variability is to be expected with dosing pumps and the 1.1 mL is an average rating of the pumps. Overall it is best to measure the flow to find the accurate dosage depending on power, lifespan of the tubing and several other factors. Often remeasuring once a year will help to keep the flow accurate.
I need to run this pump about 300--480 minutes per day? Is this too much? Whats the max number of minutes on and then min. number of minutes off if you are going to run this schedule all day?
I just got a dosing pump and was wondering if there was a maximum height that I can mount the pump in my stand. I currently have it mounted about a foot above my container of dosing solution.
That won't be a problem. The pump shouldn't have any issue pulling solution up anywhere within a normal sized aquarium stand.
Does the BRS 2 part doser draw enough power for the ReefKeeper PC4 module to reliably shut off when connected to channels 2 or 3 or should it be connected to channels 1 or 4?
In most applications it is but I would still recommend using the relay outlets on 1 & 4 just to be safe!