Profilux vs Apex

[lastlight]

Originally Posted by Delphinus

Continuing with this derail ... FWIW, I am running an Osmolator on my 280g, and with 3x400w halides, 4x54w t5's and 2x24 t5's, there is a fair bit of evaporation happening.

But the Osmolator is defective, it doesn't shut off (it gets stuck on). In the meantime while I am dealing with Tunze service about this, I just plug it in for a few minutes twice a day and unplug it when the water level gets to the level it should be.

Point is, the supplied pump is not slower than the rate of evaporation.

One thing you can do however, is get a 12V relay from an electronics supply store, splice that into an extension cord, run it off the top up and then you can run a Maxijet (or a solenoid valve or whatever you want) instead of the suppliied DC pump. You can also buy such a relay from Tunze although I don't see it listed anywhere, but the DIY project would be pretty simple (and probably around $10-20 in cost).

Check it:
http://www.michiganreefers.com/forum...er-device.html

I was going to suggest this after Greg posted about the unit not being sufficient for his setup. I've seen that pump flow tho...I have a super tough time believing it pumps slower than the evap. Or maybe I'm not fully understanding. Maybe the reservoir the sensor is in is very large so when the 'eye' detects a need for water it can't make it up in 10 min. I think if you make the return pump area small enough so evaporation makes the level there change very quickly...the unit will be doing far more frequent topoffs and none even close to 10 min in length.

But umm...on topic...I like my standalone doser. If the main unit is as easy to use at it is I wouldn't have any issues. I'm a computer nerd to a small degree so maybe it helps I'm not sure.