You should be able to get some skimmate out of the EV-120 using the Mag 7, but you'll get more using the next size larger pump. When I put the 1" injector w/ 1" hose on my EV-150, I noticed a fairly large increase in the flow rate through the skimmer, so I would say yes, it would be worth it.
AquaC CLUB!
- Thread starter JohnL
- Start date
It's just the hose connector (both inside and outside diameters) and 90 degree bend that's larger. The threads going into the skimmer body is the same. I've ran my skimmer using a 1" hose connected into the original 3/4" injector prior to upsizing the injector and IMO the upsized injector made as much or more of a difference for flow than the larger hose. If you are trying to compute head loss through the injector, keep in mind that the 1" injector has an inside diameter of approx 3/4", whereas the 3/4" injector has an inside diam of 1/2" so you can't just figure the difference between 1" and 3/4" 90 degree bends. Plus the crimped injector adds a few head of head loss.
Ok, I'll try the 1" injector first. The fact that the 3/4" injector is really only 1/2" inside didn't occur to me.
My return pump happens to be a Mag 950. So if the 1" injector and 1" hose doesn't make the difference, I may try the Mag 950 as an experiment.
The other possibility is to lower the skimmer. But that would mean cutting another hole in my glass fish tank sump. It was scary enough to do it the first time (TWICE!).
pogodzib, what pump do you use?
My return pump happens to be a Mag 950. So if the 1" injector and 1" hose doesn't make the difference, I may try the Mag 950 as an experiment.
The other possibility is to lower the skimmer. But that would mean cutting another hole in my glass fish tank sump. It was scary enough to do it the first time (TWICE!).
pogodzib, what pump do you use?
If you lower the skimmer, make sure that you keep the outlet pipe above the existing water surface. Over this past weekend, I made a 3" DIY riser section out of PVC and have re-installed my Mag 12 on the skimmer to see if I can get even better results. I get tiny bubbles all the way through the main riser section and it just seems like with the Mag 12 pump that a taller riser tube should improve the skimmer. Otherwise, I've been using a Mag 9.5
JenDub
In Memoriam
Hello to all, I'm running an ev400 with a 1" injector & mag24. I tuned the skimmer by adjusting the gate valve to bring the water line to the top of the box (air completely shut off) and then opened the ball valve about 2/3 of the way.
It seems really turbulent at the top of the water in the neck and I'm not getting any skimmate/foam column. Any tips?
ps- the skimmer is used and has been broken in on my system for a week
It seems really turbulent at the top of the water in the neck and I'm not getting any skimmate/foam column. Any tips?
ps- the skimmer is used and has been broken in on my system for a week
Waxxiemann
New member
Sounds like you got everything ok. I'd maybe wait and see. What's the bio load like?
JenDub
In Memoriam
It's 480g with about 100lbs of live rock and not much else for now (new system). I was having the same issue on my established 170g system. On the 170g I got a foam head going but it was never enough to reach the cup and every time it got close it seemed to collapse from our daily maintenance & feeding. The euroreef 8-3 was pulling a pitcher of iced tea out of the 170 every week...
I noticed the clear neck extends down into the box and inch or so; is the "top of the box" the bottom of the clear tube inside or is it the top of the outer box where the clear tube attaches if looking in?
Should the foam level start about 1/3 up the neck? Seems low to me...
chase33
New member
I'm no expert not by any means as I just got mine dialed in after many months of anguish. I would slowly dial it down by turning the gate valve. You can see when the water level in the tower decreases (also I kept my air valve 3/4 of the way open). As soon as you see it dip below the tower and into the box stop dialing it down and wait a day or so to see if the foam rises. If the foam doesn't rise high enough dial down the gate valve a little more and wait again. I can't guarantee but this is what worked for me after months of playing with the thing. Hope it works for you too.
IMO, my skimmer works better the more air I have. I can't open the air valve all the way cause it causes a flood but I keep it as open as I can. I took the valve off the side of the skimmer altogether. I've been thinking of but a quality ball valve and installing it on the output of my pump. That way I could open the air valve up all the way and control the skimmate by restricting the water flow into the skimmer. What do you guys think?
TheMorayMan
New member
SHould I take THe Gate valve off my EV-120? I think the elbow is messing with the skimmate, and i need the elbow on it to fit it in the sump, so shud i take it off all toghter?
Moumda - I prefer to leave the pump at full blast unless you can't keep the water level below the top of the skimmer box and adjust the air valve to control the skimmate thickness. With the AquaC skimmers, the more flow through the injector, the more air that gets sucked into the skimmer body. By cutting back the flow and leaving the air valve wide open, you won't get any more air than leaving the valve wide open and restricting the flow.
TheMorayMan - Unless your pump is too powerfull that you can't keep the water level below the top of the skimmer box, I don't see any reason why it would be beneficial to take it off.
TheMorayMan - Unless your pump is too powerfull that you can't keep the water level below the top of the skimmer box, I don't see any reason why it would be beneficial to take it off.
TheMorayMan
New member
my water level is in the damn tower, half water and half foam in the tower, is this wrong?
TheMorayMan
New member
well air off or on it is in the foam tower
TheMorayMan
New member
well air off or on it is in the foam tower so thats bad
Similar threads
