- 16 Aug 2014
Thank you will let you know how it goes.
While thinking of adding a NW pump i was doubting how to place the outflow of that NW. If i read this entire thread correctly, i would have to place the outlet of the co2 enriched water just like the filter outlet, across the entire length of the tank, but with slightly larger holes, to prevent that my plants are blown out of the substrate. Am i right?From a flow/distribution perspective, place the filter inlet tubes wherever you want. They do not contribute much to the shape of the flow field. The placement and orientation of the outlets are much more important. THEY must be on the same side pointing in the same direction, otherwise the risk of energy cancellation and incoherent flow is high. When multiple outlets work together they multiply the flow energy and contribute to uniform flow.
Here is a photo of a sample installation. You might just be able to make out the back glass. There are actually 3 spraybars. Two of them are ganged together on the left side with an inch long piece of tubing. I was too cheap to buy a 4th for the right side. Remember this is a 6 footer. This is not a very sophisticated installation at all. They are just mounted on the back with suckers and just joined to the filter outlet tube. I don't even use the shepherds crook, no need and better flexibility. Now, Fred Flintstone and Barney Rubble would have done it this way so I'm not particularly proud of it's lack of modern aesthetic appeal but it works. The holes in the bars point straight out - horizontal towards the front, maybe even slightly upwards. I previously had HC in the foreground which used to just decay when I used the £40 lily pipes. Subsequently, after spraybar installation, huge mats of it would detach from the substrate due to the buoyancy from pearling, which actually became annoying.
View attachment 76935
This shot shows the bars more closely and shows the orientation of the holes. I found a much better behaved ground cover plant (P. helferi) and it also benefits from this simple configuration.
View attachment 76936
I use two inline diffusers and two filters, one is a Cal Aqua and the other an AM1000. Ideally, mount the spraybar centrally but you can do as I did and join two bars together. This gives you better coverage and lowers the exit velocity at each hole because there are more holes. On my setup there are a few gaps, like at the two far ends of course and a foot or so in the middle. No big deal.
Remember, if they look too ugly you can mount them way up at the waterline so that you hardly notice them. Of course, real aquascapers would never even consider such a cheesy setup, but hey, it works. Just you try growing a 6 foot mat of HC 2 feet underwater. Not even remotely easy. This give you the best chance. Anyway, I've completed a self hypnosis course and now I tell myself "what spraybars?"
Hello,I've read this thread from start to finish and can't help but wonder, instead of diy spray bar solutions, can't we just use a water maker that propels water across the length of the tank and get the flow sorted once and for all?
Thank you all for the great info.
https://www.jbl.de/en/products/detail/4596/jbl-outset-sprayFirstly has anyone managed to find either a decent ready made spraybar kit or a pipe and fittings in black?
thanks for the input, I came across these but there's no mention of whether you can add extra pieces to it which I'm sure you can but involves buying another kit
I bought an extra set to go with my JBL e1501 so that the spray bar covers the full width of the back of the tank.thanks for the input, I came across these but there's no mention of whether you can add extra pieces to it which I'm sure you can but involves buying another kit
Secondly how does everyone go about ensuring they have the 'correct flow'
Were these 2 not competing against each other
I know you said it's now aimed slightly towards the right now but does than not stir the soil up being that close to the glass?
I'm quite sure the photo was take during a water change to show the spraybar and how they were set up so they would normally be underwater.I initially put my spray bar out of the water a bit like Ceg4048 post no 11
Did you also fork silly money out for the rubber suckers to fix it to the aquarium or find a cheaper source?I bought an extra set to go with my JBL e1501 so that the spray bar covers the full width of the back of the tank
|R||Best way to improve water flow?||Filters, Filtration and Pumps||7|
|Water flow rate over bio filter media||Filters, Filtration and Pumps||3|
|Oase biomaster 600 water trickling/dripping noise||Filters, Filtration and Pumps||4|
|F||Can you over filter the water?||Filters, Filtration and Pumps||4|
|Cleaning filter sponges in tap water||Filters, Filtration and Pumps||14|
|D||Help with water change pump suggestions||Filters, Filtration and Pumps||4|