Problem with PGP Power Reactor - Equipment - Aquatic Plant Central

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Old 04-06-2005, 03:41 PM   #1 (permalink)
Jim
 
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Default Problem with PGP Power Reactor

I'm having a problem with my power reactor. When I inject CO2 into the reactor at about 20 ppm it's fine, but if I try to move it up to between 25-30 ppm, CO2 forces the water out of the chamber and bubbles up through the inlet tube to the water surface (quite strong actually).

The pad at the bottom is not clogged. Should I raise or lower the inlet tube in the hole? Should that have an impact?

This is a relatively new set-up for me so I'm still learning. Thanks for any advice,

Jim
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Old 04-06-2005, 04:23 PM   #2 (permalink)
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Jim, I have two of these so, speaking from expeirence:

1. Take the sponge out
2. Lower the unit to about 1/2" from the substrate.
3. Make sure the power head is not clogged with debris

This should take care of the problem.

Couple of ?:

How are you measuring your co2?
Do you have a bubble counter?
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Old 04-06-2005, 04:29 PM   #3 (permalink)
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Hi Roy,

Thanks, I'll give that a shot. I have a regulator with needle valve and bubble counter. I'm taking the measurement off the regulator directly, rather than figuring out flow with the bubble counter. It's tough because the adjustments are so sensitive. I also have the Milwaukee automatic pH controller/solenoid set-up.

Jim
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Old 04-06-2005, 04:31 PM   #4 (permalink)
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Roy,

Just to clarify -- when you say take the sponge out do you mean just to clean it then return to the cylinder? Or are you suggesting that I leave it out permanently? If it's the latter, I'm confused about how that would work -- wouldn't the gas just escape out the bottom?

Thanks,

Jim
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Old 04-06-2005, 04:45 PM   #5 (permalink)
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Leave the sponge out permanetly, I do and the gas does not escape. The tube is long enough. When you say you measure the co2 at 20ppm, your reading that off of your regulator? The only way to know how many ppm's of co2 you have in your water is to calculate your kh and ph. At least that's the only way I know.

The only time I have excess gas in my tube is when my power head is clogged or has some bubbles trapped in it. You should remove it and take the empellor out and do a good cleaning.
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