spraybar for powerhead - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 12-31-2007, 01:41 AM Thread Starter
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spraybar for powerhead

I want to make a DIY spraybar to attach to the outlet of my powerhead. I think it will help distribute my CO2 much more evenly and efficiently and will add gentle circulation to the tank. I searched the forum and couldn't find what I wanted. Can anyone direct me to a thread on this topic or give me info about how to make one? Thanks.

75 gallon tank: gH 12 degrees, kH 4 degrees/ PC lighting - Coralife Lunar Deluxe fixture 4X65W (2 GE 55W 9325K bulbs, 2 55W EIKO 6500K bulbs)/ 1 Penguin 330 HOB filter, 1 Penguin 125 - bio wheels removed/ Pressurized CO2: tubing fed into input of a maxi-jet 400 power head, 4 bps
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post #2 of 5 (permalink) Old 12-31-2007, 01:55 AM
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I would think it would be easy to fabricate out of some PVC, an end cap for the PVC, a reducer that would accept the appropriate hose barb and some silicone tubing to connect to the outflow of the powerhead.

Personally, I would either get an XP3 or XP4, build an inline DIY reactor and call it a day. I have gone the diffuser, powerhead, misting route and I couldn't find anything that I liked. I bought an XP2 and built a reactor and I love the results. I don't have any CO2 bubbles in my tank and my plants pearl about 2 hours quicker with the reactor. It also reduced the amount of equipment in my tank.

I was always skeptical about people saying the HOB filters degass the CO2 from the water. I can attest to the fact that a canister is better for this reason. One clear indicator for me was that the evaporation rate is much slower with the canister vs. the HOB filter.

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post #3 of 5 (permalink) Old 12-31-2007, 01:57 AM Thread Starter
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[quote=BiscuitSlayer;504794]I would think it would be easy to fabricate out of some PVC, an end cap for the PVC, a reducer that would accept the appropriate hose barb and some silicone tubing to connect to the outflow of the powerhead.

Sorry for my ignorance, but what's a reducer? Unfortunately, I have a really difficult time picturing things. I think I'm going to need photos of someone's project.

A canister filter is not in my budget right now, but you're probably right.

75 gallon tank: gH 12 degrees, kH 4 degrees/ PC lighting - Coralife Lunar Deluxe fixture 4X65W (2 GE 55W 9325K bulbs, 2 55W EIKO 6500K bulbs)/ 1 Penguin 330 HOB filter, 1 Penguin 125 - bio wheels removed/ Pressurized CO2: tubing fed into input of a maxi-jet 400 power head, 4 bps
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post #4 of 5 (permalink) Old 12-31-2007, 02:10 AM
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I am not sure if reducer is the correct term. If you have a look at Rex Grigg's Reactor that he built, you will see what I am talking about at the top of the reactor. It is effectively a cap with a threaded center that would allow for an appropriate hose barb to be screwed in. I would use a much smaller diameter PVC pipe than what is used for a reactor (maybe 1/2" or so). Put a cap on one end. Put the thing that I called the reducer on the other end with the right size hose barb screwed in, and then attach a small bit of tubing from the spraybar to the powerhead. The spraybar would have to be drilled with x number of holes between the ends.

Make sense?

Edit: Forgot the link to Rex's reactor image: http://www.rexgrigg.com/reactor1.jpg

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post #5 of 5 (permalink) Old 12-31-2007, 02:20 AM Thread Starter
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Quote:
Originally Posted by BiscuitSlayer View Post
Make sense?
Not yet, but I think it will once I look at it a bit. Thanks so much for your help!

75 gallon tank: gH 12 degrees, kH 4 degrees/ PC lighting - Coralife Lunar Deluxe fixture 4X65W (2 GE 55W 9325K bulbs, 2 55W EIKO 6500K bulbs)/ 1 Penguin 330 HOB filter, 1 Penguin 125 - bio wheels removed/ Pressurized CO2: tubing fed into input of a maxi-jet 400 power head, 4 bps
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