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[APD] Where to find needle valve?
I've asked this before I believe, and ended up going with one that would
just get me up and running with C02 a couple years ago.
Well I'm tired of it! This is a nightmare. It's just a brass welders
valve and it has zero control in the range that we aquarist require. I
brought up the room temperature by 2C the other day and left it
overnight. My bubble rate increased, resulting in a CO2 increase of
10ppm. Adjusting the valve by 0.005 degrees, I've brought the rate down
to 1bb/5sec and waiting for the PH to rise.
... off checking current status ...
Well, I got the PH to rise .1 over the last 5 hours and CO2 back down to
35ppm. Yes, I'm pushing the envelope. This is why I need a new valve.
It's hair sensitive. I need something with 50 turns to get the
sensitivity I require. Fiddling with this thing to get the rate I want
and having to monitor room temperature is a joke. If I fiddle too much
attempting the perfect adjustment, I've induced heat through the brass
knob and the bubble rate will drop with cooling. Hows that for sensitive?
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