Matching Overflow And Pump???????
- Thread starter tdog7879
- Start date
natclanwy
Active Member
When using a HOB overflow you need to size your pump to 70-100% of the overflows rated capacity after you subtract for headloss. With a 1200gph overflow you need a pump than can return 850gph to 1200gph after headloss.
The mag 12 will fall somewhere in the middle of this range depending on your plumbing.
The mag 12 will fall somewhere in the middle of this range depending on your plumbing.
tdog7879
Member
Originally Posted by natclanwy
http:///forum/post/2805496
When using a HOB overflow you need to size your pump to 70-100% of the overflows rated capacity after you subtract for headloss. With a 1200gph overflow you need a pump than can return 850gph to 1200gph after headloss.
The mag 12 will fall somewhere in the middle of this range depending on your plumbing.
I was just going to use hose.....do you think that they will work together?
http:///forum/post/2805496
When using a HOB overflow you need to size your pump to 70-100% of the overflows rated capacity after you subtract for headloss. With a 1200gph overflow you need a pump than can return 850gph to 1200gph after headloss.
The mag 12 will fall somewhere in the middle of this range depending on your plumbing.
I was just going to use hose.....do you think that they will work together?
markandkri
Member
i use hose on my return. i would go towards the 70% mark
i personally dont believe you need that much flow going through your sump
for one thing it can be very loud if the tank is in the livingroom etc..
and your skimmer can only process so much water at a time.
i use powerheads for watermovement.
on the 220 i had i only ran a eheim 1262. it was perfect. i had two overflows and it ended up being around 300 gph on each side. it was quiet and the skimmer was able to process what came through the sump.
i personally dont believe you need that much flow going through your sump
for one thing it can be very loud if the tank is in the livingroom etc..
and your skimmer can only process so much water at a time.
i use powerheads for watermovement.
on the 220 i had i only ran a eheim 1262. it was perfect. i had two overflows and it ended up being around 300 gph on each side. it was quiet and the skimmer was able to process what came through the sump.
natclanwy
Active Member
Hose will be fine, As far as flow rate doesn't make much difference I have seen systems with extremely high flow rates and very low flow rates that have run successfully, as far as noise goes there are things that can be done to quiet any sources. I agree that you don't need a huge amount of flow through your sump but it really depends on how your system is designed and if all you need is more circulation in your DT you would be served better by setting up a closed loop or adding powerheads rather than trying to run more flow through your sump.