Bubble Magus Doser NOT dosing the correct amount??

Gwitness · Sep 1, 2015

I recently bought this doser and I am wondering why it will not dose the correct amount?? I'm not sure if I am doing something wrong or if there is something wrong with the doser itself.....I have my calcium going through pump 1 and I have it set for 40ml a day and I have it dosing it ALL at one time....When I measure how much is being dosed, it is only 25ml??? Anyone have this happen before with this doser or have any idea how to fix this issue??

Gwitness · Sep 2, 2015

So I just split up the dose of 40ml to dose 4 times a day instead of all in one dose and now it's dosing the correct amount?? Is this doser supposed to be more accurate with smaller dosages?

Gwitness · Sep 3, 2015

BUMP... Anyone know how to fix this issue or had a similar issue?? or do I need to order new replacement heads from BRS?

zwulfke · Sep 3, 2015

With mine it's like 2 times a day I don't seem to have an option for 1. I may have an older model though

Gwitness · Sep 3, 2015

Oh okay....well either way something isn't working right because my pump 1 is off every time and so is my pump 2....pump 1 I have set for going on twice a day now and it should be dosing 20ml per time and only doing 10ml ....I have no idea how to fix it or do I buy a new pump head or what?

SPSREEFS · Sep 3, 2015

Did you check the calibration for each pump head???+

Gwitness · Sep 3, 2015

Haha No I don't think so! I have no idea how to even do that! The directions that it came with didn't tell me to do that.....what do I have to do?

SPSREEFS · Sep 3, 2015

Read the directions. It has to be in there. You should be able to dose much more then 1-2 times a day. You want stable water params. I own a kamoer doser. My kh is dosed 24 times in a 24 hour period!

Gwitness · Sep 3, 2015

Well that's not my issue...I know I can dose more than twice a day...I can change all of that....my issue is that it is not dosing what I have it set for....for example I have it dosing twice a day right now 60 ml....so that should dose 30 ml each time and it's only dosing 20 every time....

The Kahnasaur · Sep 3, 2015

Was it purchased new or used? I bought mine used and replaced the heads just to be safe.

Gwitness · Sep 3, 2015

I bought it used....so would replacing the heads fix that issue then?

SPSREEFS · Sep 4, 2015

More then likely yes. Probably why they sold it. I googled it. No calibration adjustment. That's bad........

Gwitness · Sep 4, 2015

Dang that sucks...well ill order them then...thanks a lot for the help

SPSREEFS · Sep 4, 2015

So they calibrate them at the factory and set the motor speed to the ID of the dosing line

Gwitness · Sep 4, 2015

SPSREEFS said:
So they calibrate them at the factory and set the motor speed to the ID of the dosing line

So am I screwed then even if I order to replacement heads??

SPSREEFS · Sep 4, 2015

Well, you want me to be nice or honest......lol

Gwitness · Sep 4, 2015

Lol honest....cause I just ordered the replacement heads from brs and I'll cancel the order if they won't make a difference

SPSREEFS · Sep 4, 2015

I would take that money and purchase the kamoer doser... Put it towards a real doser!!

swk · Sep 4, 2015

Doses is one area where it is NOT smart to save money. One malfunction can nuke a tank. Spend real money on a quality unit.

Litermeter3 from spectrapure were my choice before I switched to calcium reactors. Ghl is another very reliable brand. But, Magnus, jabeo, etc are not worth the money saved in my opinion.