Eheim intake into spray bar? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 02-19-2011, 08:12 PM Thread Starter
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Eheim intake into spray bar?

Dunno if this should go in DIY or Equipment...

I have an Eheim 2215 set up on my 46bowfront and I'm having some trouble with the spray bar. I really want to have it vertical, but the weight of the inline heater is pulling it down and deforming/pinching the tubing at the top of the spray bar. This lowers the flow significantly. I was wondering if I could buy an intake tube, plug and drill it, and make it into a spray bar. I'm worried if the plastic is too brittle or if anyone has any experience in this. Thank you!

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post #2 of 6 (permalink) Old 02-19-2011, 08:50 PM
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perhaps you could place your tube skin a little closer to the spraybar. i guess you could buy another one and chain them together. alternatively, you could route the tubing through a short piece of pvc pipe to keep it straight.
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post #3 of 6 (permalink) Old 02-19-2011, 09:39 PM
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You could buy a lager size silicone hosing Cut a little piece that's large enough for the complete bend over the rim of the tank (4-5 inches). Then slice it length wise like your butterflying it. Put this over the kink plus the hose bend and it should take the brunt of the stress.


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post #4 of 6 (permalink) Old 02-20-2011, 12:08 AM Thread Starter
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Ah! I never thought of doing either of those things. Another thing compounding the problem is that there is a light switch right behind the spray bar, and it has to be at an odd angle to keep the light switch accessable. I think I'll try jmowbray's idea first and see if that helps.
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post #5 of 6 (permalink) Old 02-20-2011, 02:06 AM
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In answer to the original question, I do not see why it would not work to use the material of the intake and drill it to make a vertical spray bar.

I have had soft thin wall vinyl tubing collapse when used on the intake (suction) side of a canister filter, and had some collapse like yours has done when it is bent, even on the outlet side of the filter.
However, I have not had that problem with a hard pipe, even thin wall pipe collapse either using it as intake or outlet. I think the pressures we deal with are not enough to be a problem.

If you want to set it up, drill what you think are enough holes (diameter and quantity) and run a test. See how hard the water is blasting out of them. If you feel you need to ease the strength of that blasting water, then either drill more holes, or enlarge the holes. Or both, of course.
A weakly attached plug at the end of the pipe would provide a safety outlet. If the pump is trying to force more water through too-few holes, the end cap will blow off. Then you know you need more holes, or larger holes.
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post #6 of 6 (permalink) Old 02-20-2011, 04:46 PM
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In a pinch, just cut a piece of metal coat hanger and bend it appropriately to the right length & hang the heater to the tank rim.

I have used this method or a plastic wreath hanger to accomplish the same thing.

Dee

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