Fluval Fx5 Spray bar mod

  • We are currently upgrading MFK. thanks! -neo
The hose looks like metal reinforced PVC hose...if so, yes Home Depot / Lowes sells it by the foot. Youll need 1" ID hose.
 
236LittleRiver;4859688; said:
The hose looks like metal reinforced PVC hose...if so, yes Home Depot / Lowes sells it by the foot. Youll need 1" ID hose.
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i think its nylon Reinforced and yes its 25mm id hose
 
I was wondering what size drill bit did you use?? Cause I made one as well but my spray bar didnt end with an end cap. I have my sump and my canister filter on a 32in spray bar.

Also to add, does a spray bar reduce the flow rate??
 
ninjastar;4865836; said:
I was wondering what size drill bit did you use?? Cause I made one as well but my spray bar didnt end with an end cap. I have my sump and my canister filter on a 32in spray bar.

Also to add, does a spray bar reduce the flow rate??
Click to expand...


Smaller Drill bit on a somewhat pressurized filter (i.e. FX5) will create a more powerful stream from each hole. Larger one will reduce the power of the stream while still providing the maximum amount of water throughput for the filter.

Sump connected on one end and the can on the other I assume... As long as you have the proper hole diameter, you should be fine. But remeber that you may have to test and tune your own setup. If the bars holes seem like they are really powerful then try increasing the hole diameter by a 32nd or 16th on the holes and retest.

Also, do you want a lot of turbulence coming from the spraybar or just max throughput with minimal water turbulence? This is what you have to decide based on your setup... JMO though...
 
Mastiffman;4866743; said:
Smaller Drill bit on a somewhat pressurized filter (i.e. FX5) will create a more powerful stream from each hole. Larger one will reduce the power of the stream while still providing the maximum amount of water throughput for the filter.

Sump connected on one end and the can on the other I assume... As long as you have the proper hole diameter, you should be fine. But remeber that you may have to test and tune your own setup. If the bars holes seem like they are really powerful then try increasing the hole diameter by a 32nd or 16th on the holes and retest.

Also, do you want a lot of turbulence coming from the spraybar or just max throughput with minimal water turbulence? This is what you have to decide based on your setup... JMO though...
Click to expand...

So no matter the diameter its still at maximum gph and its all about how I want the stream of water to be??
 
So no matter the diameter its still at maximum gph and its all about how I want the stream of water to be??
Click to expand...

More Pressure (Resistance in flow) = Less Flow Volume
 
ninjastar;4880741; said:
So no matter the diameter its still at maximum gph and its all about how I want the stream of water to be??
Click to expand...


No, being that filter is not a completely pressurized filter system. The IMopellers only pump so much water that depends on back pressure... Or the size of the output holes. Determine how long of a bar you want, drill holes starting at 1/8" every 1.5". Test. If the power is too much then you have one of two choices... Either Drill more holes (could possibly weaken Spraybar if drilled to close) or drill the existing holes larger. Increase the diameter by steps, not large jumps. Unless you are looking for max flow with minimum turbulence... I would use steps of a 16th...

Good Luck!
 
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