Sunday, April 18, 2010

Nitrate reductor update

In my previously I put a post a nitrate reductor -

I was having a bit of trouble getting the flow rate just right.... I T-pieced the flow from a 1500 lph pump I used to cycle the water through the chiller. Now the flow rate was just right when the internal canister re-circulation pump wasn't on however, once I connected the re-circulation it would stem the flow... I tried everything i.e. re-arranging the hosing checking for air in the reactor (maybe there was an air lock) to no avail. As always Occam's razor i.e. the simplest solution is always the way to solve the problem. I know you can buy a special computer (with redox readings) to adjust the flow rate which would have been an expensive solution but, I know that you can run this reactor without this extra add-on.

So I went out and bought a 250 lph pump and, next I just needed to adapt the hosing from the pump to fit the tiny 3mm tubing which fits the Nitrate reactor. So basically the 250 lph pump fit a 5mm airline hose to which I attached a airline splitter (the one you use to split the air flow for a air pump to a number of different air stones) - perfect solution ! Anyway now the flow rate is perfect and, the drip counter is reading a drop per second or 1 litre per hour.

The main problem was that there was NO information available on the internet or from other sources of information on how to set these things up so basically it was trial and error.... please sees photo's below:

 

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