Okay, I'm debating two different flow upgrades to my tank, thoughts, opinions, criticisms, appreciated... 
Goal is to target around 30-40x tank turnover per hour.
Plan 1:
Drill the tank, this requires emptying the tank or mostly draining, drilling it and then installing the bulkhead and plumbing for a Closed Loop. Luckily, a fellow ARC member has offered to help me with this, so the actually drilling part shouldn't be too much trouble at all. But I'm still not looking forward to drilling a fully stocked tank after draining 2/3s of it etc., etc., etc...
The closed loop pump would be a Sequence Snapper pumping water up to a CLM w/ 6x nozzles and producing about 2200 gph (after head loss). The nozzles on the CLM would be pointed in all different directions, some crossing paths, etc., creating a lot of inter-locking flow, lots of turbulence, etc.
Plan 2:
This plan comes courtesy of some of what Cameron has posted lately on flow...
Here I wouldn't drill the tank at all but use Mag drive pumps plumbed over the tank wall and primed to create my closed loops. I would actually use 2x pumps and 2x CLMs in this design.
The pumps would be either 2x Mag 7s or 2x Mag 9.5s and would each run a CLM half the size of the one in Plan 1. Each CLM would have 3x nozzles all pointing in a similar direction to create as much flow as possible and a fairly laminar flow in the tank, additionally these CLMs would run one at a time. This flow would be somewhat interupted by the 2x return nozzles from the sump.
In this situation, only 1x Mag would run at a time (24hr period) before turning off and having the other Mag run. Each CLM would point in the opposite direction, so every 24hrs the flow in the tank would change directions. Except on thursdays when I'd run both Mags at the same time just to stir stuff up... anyway, here's how it would run.
Day - Direction
Mon ->
Tue <-
Wed ->
Thu -><-
Fri <-
Sat ->
Sun <-
--------------------------------------------------
So there you have it, what do you guys think?
thanks,
Matt
Goal is to target around 30-40x tank turnover per hour.
Plan 1:
Drill the tank, this requires emptying the tank or mostly draining, drilling it and then installing the bulkhead and plumbing for a Closed Loop. Luckily, a fellow ARC member has offered to help me with this, so the actually drilling part shouldn't be too much trouble at all. But I'm still not looking forward to drilling a fully stocked tank after draining 2/3s of it etc., etc., etc...
The closed loop pump would be a Sequence Snapper pumping water up to a CLM w/ 6x nozzles and producing about 2200 gph (after head loss). The nozzles on the CLM would be pointed in all different directions, some crossing paths, etc., creating a lot of inter-locking flow, lots of turbulence, etc.
Plan 2:
This plan comes courtesy of some of what Cameron has posted lately on flow...
Here I wouldn't drill the tank at all but use Mag drive pumps plumbed over the tank wall and primed to create my closed loops. I would actually use 2x pumps and 2x CLMs in this design.
The pumps would be either 2x Mag 7s or 2x Mag 9.5s and would each run a CLM half the size of the one in Plan 1. Each CLM would have 3x nozzles all pointing in a similar direction to create as much flow as possible and a fairly laminar flow in the tank, additionally these CLMs would run one at a time. This flow would be somewhat interupted by the 2x return nozzles from the sump.
In this situation, only 1x Mag would run at a time (24hr period) before turning off and having the other Mag run. Each CLM would point in the opposite direction, so every 24hrs the flow in the tank would change directions. Except on thursdays when I'd run both Mags at the same time just to stir stuff up... anyway, here's how it would run.
Day - Direction
Mon ->
Tue <-
Wed ->
Thu -><-
Fri <-
Sat ->
Sun <-
--------------------------------------------------
So there you have it, what do you guys think?
thanks,
Matt
