Complete Leak Check, CO2 pressurized system - Page 13 - The Planted Tank Forum
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post #181 of 212 (permalink) Old 02-09-2014, 11:04 PM
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Originally Posted by Bettatail View Post
nice regulator you have there, it is a top CONCOA.

give it a simple leak check.

1. put the system on co2 tank, charge it with co2.
2. set the output pressure to 50 psi, then solenoid off, co2 tank valve close.
3. leave it for 6 hours, if nothing change, means no leak from the CGA320 connection to the solenoid(not cover the parts or the tubing after the solenoid).
4. the parts/tubing connections after the solenoid, use soapy water to check leak.

if no leak, one or two psi rise after solenoid power off, may be the problem of a lazy stainless steel diaphragm, should be ok if you set the output pressure high enough, about 40-50psi.


So, could you test both chambers at the same time? I read your initial post awhile back and according to your guide, the two initial steps are to test the first and second chamber for leaks.
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post #182 of 212 (permalink) Old 02-10-2014, 01:20 AM Thread Starter
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This is a simple test only to check leak from cga 320 to the solenoid, doesn't involve the function test on two stages.
If this simple test fail, have to perform the complete test to see where is the leak at exactly which stage.

Last edited by Bettatail; 02-10-2014 at 02:28 AM. Reason: gram
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post #183 of 212 (permalink) Old 02-27-2014, 03:27 AM
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I just got my first C02 tank, when I conducted step one, the HP gauge barely hit 525. Nowhere close to 800. I guess it could be a not fully charged tank, or faulty gauge?.
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post #184 of 212 (permalink) Old 02-27-2014, 03:31 AM
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Originally Posted by Kensho View Post
I just got my first C02 tank, when I conducted step one, the HP gauge barely hit 525. Nowhere close to 800. I guess it could be a not fully charged tank, or faulty gauge?.
Or you may have to wait until the tank reaches the same temp as the room it's in now and it should come up to around 800.

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post #185 of 212 (permalink) Old 02-27-2014, 03:41 AM Thread Starter
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more than likely the problem is the gauge, hopefully it is calibrate issue.

and what is the temperature of the co2 tank?
if the temperature is low(not the frosted freshly filled), the pressure is low too.

I remember last winter there was a member his room temp is about 60, the pressure is around 600 psi, but back up to 800 psi when the room temp rised to 75 for a couple days.
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post #186 of 212 (permalink) Old 02-27-2014, 04:29 AM
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It's about 61 degrees in the room I have it in, and holding steady at 600 psi.


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post #187 of 212 (permalink) Old 02-27-2014, 05:26 AM
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^ We have very similar regulator, I wouldn't worry too much about that. The test leak is the most important. Remember, the gauge goes to 4000 psi, it's not meant to be super precise.

The tube inside the gauge might be a bit bent, which is fine if it's an old gauge. And 61F is pretty cool, I get 800 around 71.



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post #188 of 212 (permalink) Old 03-03-2014, 04:44 AM
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Never got above 600psi.the room temp got to 69.


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post #189 of 212 (permalink) Old 03-03-2014, 05:35 AM
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Quote:
Originally Posted by Bettatail View Post
more than likely the problem is the gauge, hopefully it is calibrate issue.

and what is the temperature of the co2 tank?
if the temperature is low(not the frosted freshly filled), the pressure is low too.

I remember last winter there was a member his room temp is about 60, the pressure is around 600 psi, but back up to 800 psi when the room temp rised to 75 for a couple days.
Please listen Betta tells it like it is no matter what. No bull pucky. I would of used another adjective but this forum does not allow it.

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post #190 of 212 (permalink) Old 03-03-2014, 06:08 AM Thread Starter
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Please listen Betta tells it like it is no matter what. No bull pucky. I would of used another adjective but this forum does not allow it.
,
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post #191 of 212 (permalink) Old 03-04-2014, 04:52 AM
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Hit 750 at 75


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post #192 of 212 (permalink) Old 03-15-2014, 06:19 PM
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step 1. I only have around 680 psi to test. not sure that will be enough
after 6 hours. No psi drop at all




step 2. set the psi at 70
then screw off the CGA 320 off the tank. wait for 30 minutes before I record the psi. PSI still the same at 70. leave it on my desk over night for 8 hours. psi still at 70 psi.




Just the test of the regulator. no post body.
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post #193 of 212 (permalink) Old 03-15-2014, 07:10 PM Thread Starter
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step 1. I only have around 680 psi to test. not sure that will be enough
after 6 hours. No psi drop at all




step 2. set the psi at 70
then screw off the CGA 320 off the tank. wait for 30 minutes before I record the psi. PSI still the same at 70. leave it on my desk over night for 8 hours. psi still at 70 psi.




Just the test of the regulator. no post body.
carry on.
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post #194 of 212 (permalink) Old 03-28-2014, 09:05 PM
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Low pressure test question

I just purchased from Aquariumplants.com the 2-stage regulator, with a mouse solenoid and Ideal needle valve, shown in the two attached photos. The high-pressure test conducted over 16 hours performed as described in the original post of this thread; in other words after closing the CO2 bottle valve, the HP gauge continued to show the starting pressure over a period of 16 hours.

However, the low-pressure test does NOT result in the pressure remaining in the LP gauge. Instead, when I turn the regulator control anticlockwise the LP pressure gauge returns to zero. Soap water on the various connections showed no visible leaks, so I concluded either the LP side of the regulator has an internal leak, or the solenoid...

Since this is a new unit I called Aquariumplants.com rather than attempting to removing the solenoid as suggested in the guide. The person I spoke to said the unit in the shop behaved in the same way. He said the way to perform the "bleed" test on this regulator, with the CO2 bottle valve closed, was to leave pressure in the HP regulator and leave the regulator valve open to maintain pressure in the LP regulator. In other words, it is not possible to isolate CO2 in the LP regulator.

I'm NEW to CO2, so I would appreciate an experienced member's thoughts on whether the information being provided by the person I spoke to at Aquarium plants could be correct for THIS regulator? Or could this be a misunderstanding on the part of the Aquariumplants employee and I need to ask to talk to someone more experienced?

Thank you,

Robin
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post #195 of 212 (permalink) Old 03-28-2014, 09:34 PM
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Quote:
Originally Posted by Dzrtman View Post
I just purchased from Aquariumplants.com the 2-stage regulator, with a mouse solenoid and Ideal needle valve, shown in the two attached photos. The high-pressure test conducted over 16 hours performed as described in the original post of this thread; in other words after closing the CO2 bottle valve, the HP gauge continued to show the starting pressure over a period of 16 hours.

However, the low-pressure test does NOT result in the pressure remaining in the LP gauge. Instead, when I turn the regulator control anticlockwise the LP pressure gauge returns to zero. Soap water on the various connections showed no visible leaks, so I concluded either the LP side of the regulator has an internal leak, or the solenoid...

Since this is a new unit I called Aquariumplants.com rather than attempting to removing the solenoid as suggested in the guide. The person I spoke to said the unit in the shop behaved in the same way. He said the way to perform the "bleed" test on this regulator, with the CO2 bottle valve closed, was to leave pressure in the HP regulator and leave the regulator valve open to maintain pressure in the LP regulator. In other words, it is not possible to isolate CO2 in the LP regulator.

I'm NEW to CO2, so I would appreciate an experienced member's thoughts on whether the information being provided by the person I spoke to at Aquarium plants could be correct for THIS regulator? Or could this be a misunderstanding on the part of the Aquariumplants employee and I need to ask to talk to someone more experienced?

Thank you,

Robin
Did you unplug the solenoid when testing the lp pressure gauge?

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