Vertical or horizontal spraybar?

[illumnae]

Which orientation would be a better one for best flow around the tank, generally speaking (or are they both the same)?

[blue33]

Which orientation would be a better one for best flow around the tank, generally speaking (or are they both the same)?

Horizontal, wider area covered, provided enough power to distribute and no blocking. Driving down and up and down again, create a vortex flow.

[FishSoup]

Hmmm, actually, in planted tanks with co2 injection, wouldn't vertical alignment of the rainbar be better? You could put the co2 diffuser right at the bottom below the bar.. practically all the tiny co2 bubbles would be blasted round the tank. Your co2 circulation would be perfect

[blue33]

Hmmm, actually, in planted tanks with co2 injection, wouldn't vertical alignment of the rainbar be better? You could put the co2 diffuser right at the bottom below the bar.. practically all the tiny co2 bubbles would be blasted round the tank. Your co2 circulation would be perfect

Vertical would not force the CO2 down again once the CO2 trying to go up. So long if you can get the CO2 circulate and not letting it waste, any position is ok.

[gemo82]

Horizontal pointing directly downwards, or at an angle nearer to the water surface?

[FishSoup]

Vertical would not force the CO2 down again once the CO2 trying to go up. So long if you can get the CO2 circulate and not letting it waste, any position is ok.

What i meant was that there will be fewer bubbles escaping the water jet. In my tank, which has the rainbar in a horizontal position, the bubbles travelling upwards from the diffuser do not all get blasted around by the water current. Having the rainbar in a vertical position would increase the likelihood of any random bubble traveling into the pathway of at least one of the water jets, thus increasing the overall duration of the co2 bubble in the water while simultaneously improving co2 circulation overall.


Also, i was thinking about the issue.. i should think that whichever mode of placement is better would depend on the dimensions of the tank as well as the rainbar in question. In a cube tank in which the rainbar is of roughly the same width and height as the tank, either method of placement should be equally effective. If however the rainbar is significantly shorter than the length of the tank (eg. using an Eden 501 rainbar in a 2 foot tank), then horizontal placement at the top should be better for overall current around the whole tank.

There are other issues at play here too, including the placement and density of hardscape and plants, as well as the angle at which the rainbar faces.

The other major factor woud be the placement of the filter inlet as well, since it helps in generating flow too, albeit out of the tank instead of into the tank. In cases where the filter inlet is closer to the rainbar, i can imagine the flow should not be as well distributed as when the filter inlet is situated further away from the rainbar.

My 2 cents

[blue33]

What i meant was that there will be fewer bubbles escaping the water jet. In my tank, which has the rainbar in a horizontal position, the bubbles travelling upwards from the diffuser do not all get blasted around by the water current. Having the rainbar in a vertical position would increase the likelihood of any random bubble traveling into the pathway of at least one of the water jets, thus increasing the overall duration of the co2 bubble in the water while simultaneously improving co2 circulation overall.


Also, i was thinking about the issue.. i should think that whichever mode of placement is better would depend on the dimensions of the tank as well as the rainbar in question. In a cube tank in which the rainbar is of roughly the same width and height as the tank, either method of placement should be equally effective. If however the rainbar is significantly shorter than the length of the tank (eg. using an Eden 501 rainbar in a 2 foot tank), then horizontal placement at the top should be better for overall current around the whole tank.

There are other issues at play here too, including the placement and density of hardscape and plants, as well as the angle at which the rainbar faces.

The other major factor woud be the placement of the filter inlet as well, since it helps in generating flow too, albeit out of the tank instead of into the tank. In cases where the filter inlet is closer to the rainbar, i can imagine the flow should not be as well distributed as when the filter inlet is situated further away from the rainbar.

My 2 cents

If you have massive plants you will see that vertical dont work at all. You can only have a single one direction, blow and away...

[gemo82]

Can anyone advice, if horizontal position, should we tilt the holes to aim at an angle more vertically downwards, or more towards the water surface?

[Delwin]

Can anyone advice, if horizontal position, should we tilt the holes to aim at an angle more vertically downwards, or more towards the water surface?

Just point it straight

[blue33]

Tilt about minus 20-30 degree will do.

[gemo82]

20-30 degrees from the water surface or the vertical axis???

[gemo82]

Sorry if I did not phrase my question clearly nor provide any information on the set up of my inlet and outlet.

My inlet is a surface skimmer placed at the back of the tank near the centre. I intend to place the rainbar in a horizontal position at the front of the tank. So should I direct the water flow out of the rainbar downwards in a almost vertical direction, or more towards horizontally along the water surface?

[blue33]

Sorry if I did not phrase my question clearly nor provide any information on the set up of my inlet and outlet.

My inlet is a surface skimmer placed at the back of the tank near the centre. I intend to place the rainbar in a horizontal position at the front of the tank. So should I direct the water flow out of the rainbar downwards in a almost vertical direction, or more towards horizontally along the water surface?

Rainbar best in rear or side position, point towards the front and tilt down to the degree you prefer. Show us a picture would be better and easier to explain. So long you can get your water circulate and minimize the CO2 escape to the surface any method would do, each setup is different so you got to adjust to suit the flow to all areas to prevent death spot. Once there's death spot usually you going to invite algae or plant growing in funny size and shape.