BRS Doser 50 ml/min quit

Plead your case to BRS. They might be reasonable about replacing the doser if its that close to warranty. It may not be what you want, but it'll work for now. Personally I'm going Litermeter or something once these fail.
 
Ive had issue with grinding sounds, running it way to long way(dry bucket) even once it back siphoned as I left the front cover off and the tubing slipped. BUT.....

Yesterday it was running in reverse. I woke to the pump running (I can hear it 2 floors up as it mounted on a shared hollow wall is louder upstairs than in the basement). I figured the bucket was empty and time to swap. Walked into the room with the tank and something sounded off, like not enough flow. Found my dart pump in the sump sucking air as the water was to low. I added a couple gallons of top off which was too much and set off alarms. I investigated and found my top off bucket full. Either I had gremlins or it filled itself. So I went to my top off pump and it was spinning the wrong way, and I didn't have an air gap on the drain end so it became a supply end, draining my system into my top off bucket. Glad I caught it before I had a mess.
 
Ive had trouble with mine as well lasted about 13 months of service.... BRS service was good and replaced the pump free of charge only had to pay to ship it there. Was out of a pump during the process and im praying I can get another year out of the new one! Time to start looking for a replacement...
 
Just to clarify. I have the 1.1mldoser. Are any of the problems posted with those one or are the y all wit hthe 50s. Even if the reports are only about the 50s I'm still not really confident in the slower 1.1ml. Please lmk which one is failing if you haven't noted it. Thanks
 
Dosing 2part should be as easy as a simple timer, a $15 aqualifter, some tubing, and a simple drip set or another simple medical flow control like these:

DF390F08-6F18-4198-8072-0DACDD10AA34-1156-00000263AB1BDE02.jpg


I used that drip set with an aqualifter for a few years; it did stop up on occasion and needed a wee bit of help clearing/cleaning out the block. Now, I use a float valve hooked up to an aqualifter for lime; it's cheap, simple, and virtually bullet proof.
 
The aqualifter diaphram pump is fast ,3.5 gallons per hour( ie 221ml pr minute). I use them to move water into seahorse nurseries. My concern would be dosing too much lime at one time or too much carbonate at one time.
 
I'm not sure what the flow rate is through say 4' of 1/4" Pex is, but I'm sure there is friction loss. I dosed lime through the 1/8" vinyl the drip set comes with; putting it on the aqualifter requires hot water to help stretch it open, but it is not a problem. The point is, the drip set controls the rate, not the aqualifter; you see it has settings from 0-open ml/h. I'm sure a paristolic pump is easier to reset or adjust, and I'm sure equally reliable as an aqualifter, but the price point especially for a hobby brand is worth a few extra moments in my book.
 
Back
Top