DIY Coil Denitrator

3. The Drive Pump , (or powerhead)

Although you can use a siphon method to supply your system water to the denitrator, I chose to power drive my project. Siphon feeds are unreliable in my experience, (restarting a broken siphon has never been one of my favorite things).

As such, you’ll need to match the pump’s output tubing to the denitrator’s smaller intake fitting. The diagram shows the “step-down” method used to accomplish this. Start with a piece of tubing that will fit over your pump’s output nozzle.

Next, insert a next size smaller diameter tubing into that, repeating the process until you have achieved a good fit at both ends of the line, at the pump output and the denitrator’s input. Secure each connection with a nylon tie-wrap or stainless-steel hose clamp.

I always drop the short lengths of tubing into boiling water 1st to soften them up. This makes inserting them so much easier. Once done, run cold water back over the assembly and this will “tighten” them all up. You are done!

There is NO ADJUSTMENT TO THE PUMP’S OUTPUT VELOCITY AT THIS TIME! The pump will operate at it’s rated output velocity in this installation!!!

Back to the beginning.

Click on each of the DIY Coil Denitrator components below to see the enlarged views and pertinent information.

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