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River Tank Manifold
October 3, 2008
10:13 pm
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Mark Duffill
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As asked for by Dunc, a few pictures showing how I built my river tank manifold.

The manifold itself is made up of 20mm white PVC piping that can be bought from any DIY store

The first choice I had to make was the filtration side of things, either filter canisters or pieces of pipe with lots of holes drilled in with sponge slid over - I ended up going with the cartridges.
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Next mounting the powerheads
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The next step is the main section of the manifold, the centre pipes are a must to help hold the manifold down
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Once the desired setup is achieved it can be put into the tank and gravel or sand added
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Finally decor is added
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Some people have built these and glued the joints but I found that with this particular piping the joints are pretty tight and any that were not toght enough I added some thread tape to the pipe before pushing on the joint.

If anyone has any questions feel free to ask /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

October 3, 2008
10:48 pm
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dunc
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That's superb Mark, thanks very much.

Where did you get your pipes? Am just gonna head to Wickes I think.

Attaching the powerheads.. what did you do for that? I notice a bit of pipe to raise them off the ground.. then what did you do for actually attaching the powerheads to that bit of pipe? Did you botch something up or just use a special piece?

Did you get specific lengths of pipes for the long pieces? If so, what size? My tank is the same size as yours /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

October 3, 2008
11:13 pm
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Matt
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Shifted to equipment forum. Slacky site staff... /laugh.gif" style="vertical-align:middle" emoid="Laugh" border="0" alt="laugh.gif" />

Cake or death?
October 3, 2008
11:27 pm
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dunc
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Don't try making yourself look clever Matt, I already moved it!*

*may not be true

October 3, 2008
11:29 pm
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Mark Duffill
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QUOTE (dunc @ Oct 3 2008, 11:31 PM) < {POST_SNAPBACK}>
Where did you get your pipes? Am just gonna head to Wickes I think.

Pipe and joints all from B&Q

QUOTE (dunc @ Oct 3 2008, 11:31 PM) < {POST_SNAPBACK}>
Attaching the powerheads.. what did you do for that? I notice a bit of pipe to raise them off the ground.. then what did you do for actually attaching the powerheads to that bit of pipe? Did you botch something up or just use a special piece?

The piece between the power head and the straight connector is a cut down section of one of these I just took the base of the power head with me and found something that fitted between both pieces.

QUOTE (dunc @ Oct 3 2008, 11:31 PM) < {POST_SNAPBACK}>
Did you get specific lengths of pipes for the long pieces? If so, what size?

The pipe comes in 2m or 3m lengths in B&Q - I think I used 4 or 5 lengths

October 5, 2008
5:41 pm
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ndc
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you may have to be careful with the type of pipe - some you can buy has built in fungicides which arent suitable for fish

February 18, 2009
4:07 pm
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dunc
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Mark I'm having huge problems with my manifold tank /sad.gif" style="vertical-align:middle" emoid=":(" border="0" alt="sad.gif" /> The flow is absolutely pathetic. I'm heading to PBs now to try replacing the filter cartridges with pure sponge - they're not well attached and the naffy white filter sheet thing keeps clogging up. If the sponges don't wory, at least it'll help me to eliminate one of the potential problems.

February 18, 2009
4:42 pm
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Mark Duffill
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I fiddles around with mine quite a lot to keep the flow rates up and have ended up using these Sponges they seem to be very good and are a tight fit for the filter canisters. I have also added lengths of the 20mm pipe into the centres of the sponges like the pieces above that are full of holes which stops the sponges collapsing when they are full of gunk.

I originally used an 8mm drill bit to drill the holes in the first pipes but this time I have used a 13mm flat bit which keeps the flow going a lot better and lets the water pass through more of the sponge, just drill as many holes as you can while keeping the pipe walls rigid.

February 18, 2009
4:47 pm
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dunc
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Ahh I see. Those cartridges just didn't seem to be the answer. I went to Barratts but QUEL SURPRISE they didn't have anything even remotely appropriate other than a square of pond filter media. I'm gonna try and cable tie it in to a circle as a temporary solution, just to see if the flow rates increase. If it works I'll order a couple of the sponges you just linked - cheers.

Am drilling the pipes now /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

February 18, 2009
5:21 pm
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dunc
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The flow on the sponges is.. fairly massive /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" /> I wonder if it was just that naffy filter media in the cartridges being clogged which was slowing everything down. I think with the sponges you suggested and a few more holes in the pipe I can get maximum flow - I'll leave it for the time being though as I want to see how long it is before the sponges get clogged up.

February 18, 2009
6:46 pm
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Mark Duffill
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Nice one Dunc, you should see a big improvement over the other stuff in how long you keep good flow. I was using old style fluval sponges but they clogged faster than these I am using now.

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