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 life span. 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 powerbar.
- Silent operation
- Extremely accurate
- Will not back siphon
- 12 month tube life (at 4 hours of use per day)
- 12 month Bulk Reef Supply warranty on pump motor and head
Max Head - 20ft
Dimensions - 4" x 3.25" x 4.5"
Power Consumption - 3W @ 120VAC
Tubing Type - Santoprene
1x 1.1mL Dosing Pump
1x Pump Mounting Bracket
1x Mounting Bracket Screw Set
17 FT 1/4" OD Dosing Pump Tubing
Ok, but measure your flow rate! By Greg on 10/6/2017Greg would recommend this product to a friendWorks great, but runs at 1.8 mL / minute, not the advertised 1.1 m/L. Be sure to calibrate each one you buy -- both of mine were different, and neither were the advertised 1.1 mL (1.8 and 1.7 for the two I bought.)
quality product By PETRO on 10/5/2017PETRO would recommend this product to a friendquayet
Works great! By Ernest on 9/14/2017Ernest would recommend this product to a friendI have this doser to dose no pox daily- works like a charm!
Best Inexpensive Way to Dose By Tom on 9/3/2017Tom would recommend this product to a friendI have 3 of these dosers. I've been dosing Calc and Alk for over a year with no problems. I just added the third for dosing H202. It's the most economical way to automate dosing your tank. I wish BRS would find/carry a product that would allow me to put this on my Apex Energy Bars solid state outlets.
Long lasting By Bakerrichard27 on 9/1/2017Bakerrichard27 would recommend this product to a friendVery accurate long lasting I never hear mine they are quite love them cheap easy
Quality doser By Juken on 7/25/2017Juken would recommend this product to a friendvery reliable and accurate mine doses 1.8 per minute but that's ok.
Very good product and great price! By John on 7/13/2017John would recommend this product to a friendBought two dosers rated at 1.1ml/min. Both were calibrated at 2.00ml/min.. No problem though as I expected some variance from specs and reviews shown in site descriptions. Units seemed well constructed and easy to use. Installed using mount brackets included and hooked up to a two outlet timer, set for 3-5 min runs during the night (2 part ) and have checked for accuracy several times since. Right on the money at 30 ml each for the 15 min total run times. Noisy? Maybe a tiny bit but certainly not a deal breaker unless you're running in your bedroom at night! All in all a great purchase for me!
Way off stated value, and very loud By Barnaby on 6/12/2017Barnaby wouldn't recommend this product to a friendI bought three (3) 1.1 ml dosing pumps plus other miscellaneous items, received them promptly from BRS in good order, they were well packed. I calibrated them according to the instruction and their rates are 1.88, 1,85, and 1.79 (ml/min). So they are way off the stated nominal value of 1.1, I know I'm not buying/paying for a scientific instrument but that give me doubt on the manufacturer's QC, if they have one.
The other issue is they are all very loud! They started quite in the first minute or two, but ramp up to loud clicking sound, sign of very bad design and/or construction of the motor and gears.
I'm from Canada so it will be hassle to return them, for now I mount them outside of the cabinet on a timer and that helps to reduce the noise. Only time will tell if they are durable and can keep a consistent flow rate in the long term, but don't be fooled by the overall 5 star rating, they are nowhere near a well engineered product.
Excellent piece of equipment. By Donnie on 6/12/2017Donnie would recommend this product to a friendI would not hesitate to recommend! Better than I expected. No more worries.
Would recommend this prodeuct By Juken on 3/25/2017Juken would recommend this product to a friendEasy to use good quality. Bought 2 doser's and when calibrating found that both mine dose at 1.5 ml per minute. No big deal both are accurate and the same.
Constructed well By EAN on 3/15/2017EAN would recommend this product to a friendFirst, I must say that I love BRS customer service and their focus on customer satisfaction. The BRS doser is well made as far as construction and the pumping is on target at 1.8 ml. The problem I experienced was a knocking noise from inside of the pump. Customer service immediately sent another pump overnight. I give customer-service five stars, but only two for the the BRS doser. I worked for years in manufacturing and things will occur, despite using good QA measures, and the difference is in brand name and customer service.
Loved the idea By Ernest on 3/14/2017Ernest wouldn't recommend this product to a friendI love the BRS company and they stand behind their products much more than others in this game. Unfortunately, I have had some bad luck with this dosing pump. The first purchase had something rattling around inside and BRS offered an immediate replacement. The replacement made a loud knocking noise during the 10 minute run to determine my flow rate, which was 1.8.
I contacted BRS and was immediately sent another dosing pump. The replacement made the loud knocking noise immediately after setting up (flow rate was also 1.8). I plan to return the products and explore other dosing pumps BRS has available. I currently have a DOS, but needed an additional pump to daily.dose no pox. I currently manually dose mg, but plan to auto dose in the near future. The dosing demand for no pox and mg are low so another DOS is overkill cost-wise.
Again, I will mention that this issue is not reflective of other products I have purchased from BRS! However, please note the great customer-service I received that is bar-none to others in this hobby
Ask a question
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.
It sure is. You can find the replacement tubes at the link below:
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.
Input/output tubing are the same and both are 1/4" though its a compression fitting so its fairly forgiving if your close.
This stuff will do the trick just fine (most use clear).
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!
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.
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.
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!
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.
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!
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?
Have a great day!
It measures 4" x 3.5" x 4" Tall
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!
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!
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 :)
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 :)
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.
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.
That isn't a problem at all :-)
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.
That won't be a problem. The pump shouldn't have any issue pulling solution up anywhere within a normal sized aquarium stand.
In most applications it is but I would still recommend using the relay outlets on 1 & 4 just to be safe!