Neptune DOS multiple liquid draw

[swimer499]

I am currently dosing the Red Sea trace elements (4 separate liquids) these are all dosed in equal amounts per day. I am currently manually doing this and would like to automate the process. Thinking the DOS as I already have the apex and it is 150$ cheaper than the GHL2.1. Now the DOS only has two heads. Is it possible through the use of T fittings and check valves to use the DOS to draw equal amounts of two different liquids through a single head? Ie set to draw two mLs-1mL from each container? Or would I be better off getting the GHL2.1 which has 4 separate heads, which I will end up setting all for the same amount of liquid?

 

[jsker]

I am currently dosing the Red Sea trace elements (4 separate liquids) these are all dosed in equal amounts per day. I am currently manually doing this and would like to automate the process. Thinking the DOS as I already have the apex and it is 150$ cheaper than the GHL2.1. Now the DOS only has two heads. Is it possible through the use of T fittings and check valves to use the DOS to draw equal amounts of two different liquids through a single head? Ie set to draw two mLs-1mL from each container? Or would I be better off getting the GHL2.1 which has 4 separate heads, which I will end up setting all for the same amount of liquid?

I would say not to mix, for the reason they would have come mixed. I have a DOS but us the DOS for my auto water change. I would suggest a Jeboa doser and save some real bank.;)

 

[Mark Bianco]

Yes for the reason above plus different liquids have a different viscosity meaning the pump will pump a different between the fluids.

Hth
Mark