Plumbing 90g... what Mag do I use???
- Thread starter AngeloM3
- Start date
is your tank reef ready ?
or are you using an overflow box ?
if you are using an overflow box, it will be rated at so many gallons per hour, you want to be close to that with your return pump, magdrive site has a chart for gph, keep in mind the height the pump is traveling as well.
if its reef ready, I think its rated at 600 gph ? it should say on the manufactors site.
hope this helps
or are you using an overflow box ?
if you are using an overflow box, it will be rated at so many gallons per hour, you want to be close to that with your return pump, magdrive site has a chart for gph, keep in mind the height the pump is traveling as well.
if its reef ready, I think its rated at 600 gph ? it should say on the manufactors site.
hope this helps
you could go with the 9.5, and put a ball valve in to control the flow. (if you are using pvc) keep in mind also if you are going up 4', any bends, 45's,90's will slow the rate down
I use an overflow box rated at 800 gph, with a 9.5
it goes up 4', but has a 45 and a 90 on it, and the flow is just right without any valve
I use an overflow box rated at 800 gph, with a 9.5
it goes up 4', but has a 45 and a 90 on it, and the flow is just right without any valve
Shagsbeard
New member
You'll want to match your drain as closely as you can. A gate valve is much easier to fine tune than a ball valve, and I'd recommend that for your return pipe. 600 gals/hour will not be your "flow" though. You'll need substantially more than that in the tank. You can rig up a closed loop, or use powerheads. You'll need to adapt this extra flow to the occupants you plan to keep. Some like low flow and some like high.
jacksparrow7
New member
Aloha, I have a 90g Pentagon corner and was running a mag 12 with a T-piece inline and flexible pvc for two return lines. I am very new to reefing and listened to my lfs before I knew about reefcentral and this is what they told me I needed. I have since changed out the mag 12 to a Ocean Runner 3500. Two reasons, 1. the mag had way to much flow going through my small 20gal sump (very restricted on space right now) 2. The mag 12 was very loud, the tank is in my great room so it was a issue with wife. I had done everything to try and quiet it down but nothing worked. This is of course just my two cents.
Jack
Jack
AngeloM3
New member
Well I just wanna make sure I'm understanding this right..........
The megaflow in my tank is rated at 660gph. The height the pump will have to push is 5'. A Mag 9.5 at 5' is 750gph. I understand bends will decrease this.
But if I'm still getting to many gph from the Mag 9.5, I'll have to throttle it back. Now your talking about throttling it back on the output side? Because this mag will be in the sump, so there is no input side to throttle back.
Is this ok to do??
The megaflow in my tank is rated at 660gph. The height the pump will have to push is 5'. A Mag 9.5 at 5' is 750gph. I understand bends will decrease this.
But if I'm still getting to many gph from the Mag 9.5, I'll have to throttle it back. Now your talking about throttling it back on the output side? Because this mag will be in the sump, so there is no input side to throttle back.
Is this ok to do??
poppin_fresh
New member
Remember...flow in the tank is good, but in the sump its bad. It will decrease skimmer performance significantly, as well as make it more difficult to keep a refugium. Running all 600 gph through the sump will cause you problems.
You could buy a 9.5 and divert some of its flow back to the sump. I wouldn't just put a ball valve on and restrict it, it causes unecessary head on the pump. I would simply buy a smaller pump, which wont need to be restricted and will use less power too.
You could buy a 9.5 and divert some of its flow back to the sump. I wouldn't just put a ball valve on and restrict it, it causes unecessary head on the pump. I would simply buy a smaller pump, which wont need to be restricted and will use less power too.
poppin_fresh
New member
The overflow will only flow what the return pump pumps... up to its maximum of 600gph. If the return pump pushes 300 gph up to the tank, only 300 gph are going to flow back down. However, if you send 700 gph up to the tank, only the 600 will flow back down the overflow and the other 100 gallons are going over the sides!
poppin_fresh
New member
A lot of people dont get how the overflow works, they think its similar to the drain in your tub. The thing to realize is that the overflow drain is at the top of the tank, not the bottom. You must pump water in to raise the level and get it to drain out. Stop the pump, the water level doesn't rise and the overflow stops.I personally think the 7 would match up much better. Like I said, a nice slow sump speed will benefit you more in the long run.
