that is about it.
All of these parts I used are available from most Home depots in the plumbing supply.
it will take about 4 - 6 weeks for the bacteria to form.
if anyone has any suggestions please add them.
If you have any questions, ask them.
I, again, fully admit that I am not an expert.
this design was just from what I found on the internet and making it into something that would work for me.
I am sorry if it gets confusing in some of the steps in my description.
I tried to make as simple as possible.
If you google DIY denitrators, you will come up with many plans such as this.
I hope this helps at least one person so that the 2 hours it took me to type this up is worth it..lol.
thanks
Neal

Neal, one thing that I'm doing with my denitrator as I wait for it to cycle, is testing the output NO3 and NO2. Maybe you'd like to do something similar with this unit of yours, just to get an idea of how fast (or slow) it really takes to cycle in. And measure your effluent rate in terms of ml/min and stuff like that. :)

Nice simple design, I'm tempted to try one as well (would be nice to do a comparison to the sulfur denitrator side-by-side).

PS. We could start a collection for a pedicure :p

Thanks for these plans, I intend to try one.

Say, does anyone in Calgary have the appropriate tap and die set? *hint hint* :wink:

Well I started.

Bought a 6 Ft piece of 3" ABS and end caps.

will pick up the 1/4" line tomorrow as homedepot was out.

construction will start tomorrow

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Nice design. I've seen them with the coil outside of the 3" pvc as well, which seems like an easier route, but yours looks nicer.

I don't have a tap and die set, but with those fittings a bit of appoxy works well to create a good seal.

that is an idea.
just drill out the hole as big as the outside diameter of the fitting and then just silicon it.
a bit messier but probably just as effective.
there is really very little pressure on it and it probably woudl be fine.
Neal

I've got a tap and die set. I'm not sure what sizes it has but PM me if someone needs to borrow it. I have a fairly new tank so Frag would be considered a very much appreciated donation, LOL

The one thing I seen to be missing is why all the effort either sealing or using fittings where the 1/4" tubing passes into the PVC?

I'm assuming the 1/4" tubing inside the PVC is a continuous loop, the PVC is just to contain the 1/4" in a dark environment and bio-balls are put in, in same plans, just the hold the coil's shape. Wouldn't it work just as well if a couple of holes drilled in the cap a the line passing through?

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I always have a hard time finding them as well. Which home depot carries them?