DIY Spray Bar with to much flow - The Planted Tank Forum

 
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post #1 of 7 (permalink) Old 07-01-2013, 12:02 AM Thread Starter
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DIY Spray Bar with to much flow

so i got a wild hair to make one the other day, and attach it to a Marineland canister c-160. and the flow is unreal! its way to high. will drilling more holes help to reduce the flow? i was thinking yes but don't want to do something i can't undue.

the PVC is only 8" long (on a 29g) so would a longer bar also help to reduce the flow?

Will
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post #2 of 7 (permalink) Old 07-01-2013, 12:22 AM
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More or bigger holes will increase flow, but will reduce the speed of the water if that makes any sense.
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post #3 of 7 (permalink) Old 07-01-2013, 12:31 AM
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Quote:
Originally Posted by Rudger View Post
More or bigger holes will increase flow, but will reduce the speed of the water if that makes any sense.
+1. Drill more holes or make the ones you already have larger
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post #4 of 7 (permalink) Old 07-01-2013, 12:54 AM
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i have this valve right before my DIY spray bar and I can control the flow without adding more holes. Works awesome!!
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post #5 of 7 (permalink) Old 07-01-2013, 01:46 AM
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There's no build up of pressure in the filter housing/impeller from messing around with the flow, tattooed? Looks cool though, but I'd agree that either bigger holes or more holes will solve your problem.
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post #6 of 7 (permalink) Old 07-01-2013, 02:14 AM
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Most impeller type pumps don't suffer from having the flow choked down as long as it is after the pump. Not much pressure is building up. Heck the pumps we use can barely lift water 6 feet. The only downside is the wasted electricity and excess heat from using a bigger pump than you need.
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post #7 of 7 (permalink) Old 07-01-2013, 10:53 AM
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I have the valve fully open anyways but it's there to restrict flow as needed. And it works great, doesn't seem to effect the filter at all. No change in the sound if its open or closed
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