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Old 05-06-2007, 04:08 AM   #71 (permalink)
 
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Default Re: aquariumplants.com co2 regulator

And as I told you I had tested the Fabco years ago. And the unit I tested was crap. I would now suspect that someone had gotten out of hand using it as a shut off valve. You convinced me to give them another try. They are a great needle valve. I will be buying them 25 at a time.

But you seem to be really hung up on the pH issue. And it's not an issue so I can't understand why you are so hung up on it. You claim that it's better for the fish to have a more stable pH. Yet you have in one way acknowledged that pH changes caused by CO2 do no harm to fish. But you still insist that a stable pH is better.
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Old 05-06-2007, 06:41 AM   #72 (permalink)
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Default Re: aquariumplants.com co2 regulator

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Originally Posted by Rex Grigg View Post
And as I told you I had tested the Fabco years ago. And the unit I tested was crap. I would now suspect that someone had gotten out of hand using it as a shut off valve. You convinced me to give them another try. They are a great needle valve. I will be buying them 25 at a time.

But you seem to be really hung up on the pH issue. And it's not an issue so I can't understand why you are so hung up on it. You claim that it's better for the fish to have a more stable pH. Yet you have in one way acknowledged that pH changes caused by CO2 do no harm to fish. But you still insist that a stable pH is better.
Why are you still harping about pH? Re-read my posts (again several times). There are many other advantages to 24/7 injection. I never said that the larger pH fluctuation is lethal to fish. The goal of any experienced aquarist is to maintain a clean and stable water chemistry. In the case if 24/7 injection, we can accomplish this with less equipment and greater overall system reliability. If you want to split hair about the cost of CO2 injection, then I submit that you will have to pay an additional $3.94 annually in electricity to run the solenoid/timer unit (3 watts 24/7 at 15 cents per KWH).

An experienced designer would have zero problem identifying a quality needle valve by visual inspection. Any hardware can fail, right out of the box. If you paid $1500 for a Nikon digital SLR camera and the unit would take lousy picture, would you conclude that this line of camera is junk? Furthermore, one can often request a sample of the Fabco NV55 from the local distributor, free of charge. I would expect better judgment from an individual who claims to have may years of experience in this hobby.

Look at the posts in this forum about people with CO2 rig at 30 psig regulated pressure and still unable to achieve a stable bubble count. Virtually all of these problems will go away if a high quality needle valve is attached directly to the regulator. The inclusion of solenoid, pH controller, pH sensor, and other bells and whistles can only add more complexity to the simple task of metering the CO2 to the water column.

Anyone can build a great CO2 injection rig. Start out with a $40 beer regulator. Add a $20 Fabco NV55 needle valve. Miscellaneous brass connectors to attach the NV55 to the regulator will cost another $5. To prevent water from contaminating the needle valve and regulator, you'll also need a $5 one-way check valve. Final cost is $70. You'll save at least $50 with this DIY approach. The only tool required is a crescent wrench.
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Old 05-06-2007, 08:33 AM   #73 (permalink)
 
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Default Re: aquariumplants.com co2 regulator

This will be my last reply.

You bought up pH. And you have insinuated that pH swings cause stress to fish.

I merely refute that. But you continue to say that I'm the one harping about pH. You will not or can not admit that pH changes caused by CO2 cause the fish no harm. You say lethal. Can you even admit that pH changes caused by CO2 do no HARM to the fish.

As far as the fish is concerned the water chemistry is stable. The KH, GH and TDS remain the same when CO2 is injected. That's stable water chemistry. I have re-read your posts.

The solenoid only runs 10 hours (length of the photo period). When the solenoid is powered down (by use of a timer or pH monitor) then it draws no power.

I would guess you would rather ride a unicycle than a bicycle. Only one wheel and tire. No brakes or gears to have problems with.

So you are saying that if I send you something you can determine the quality by a mere visual inspection? Have you ever been married? Dated a woman?

The problems most people have on this forum are caused by very low quality equipment. Most any beer regulator is a better regulator than the Chinese all-in-ones come with. The Clippard needle valve is a much better needle valve. I have fixed many of these problem regulators by just adding a Clippard needle valve.

You must have some great shops where you live. I build a LOT of regulators. And the cost of the brass to attach a Fabco to a regulator is more than $5 for 99% of the people. I can get below that only because I buy a 100 pieces at a time.

The hose barbs alone for the needle valve and the Fabco are over $4 a pack. Then you have adapters from the regulator to the hose barb.
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Old 05-08-2007, 03:38 PM   #74 (permalink)
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Default Re: aquariumplants.com co2 regulator

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Left C, still no answer from AP.com? I'm starting to worry about the 3 year bumper to bumper.
Hi

This info is for you, ponyrandy.

I finally got ahold of someone at AP.com. I'm going to send it back. They'll either fix it or they will probably send out a replacement.
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Old 05-08-2007, 03:58 PM   #75 (permalink)
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Default Re: aquariumplants.com co2 regulator

Thanks Left C, that makes me feel better about the warranty and customer service. Was there any discussion about the scale on the low pressure gauge? I'm running mine maxed out at 15 psi. and now that I quit messing with it everything seems to be ok.
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Old 05-08-2007, 04:18 PM   #76 (permalink)
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Default Re: aquariumplants.com co2 regulator

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Thanks Left C, that makes me feel better about the warranty and customer service. Was there any discussion about the scale on the low pressure gauge? I'm running mine maxed out at 15 psi. and now that I quit messing with it everything seems to be ok.
The directions say to set the low pressure gauge to 10 psi. The low pressure gauge only reads from 0 to 15 psi as you know. I didn't ask them any specifics about the low pressure setting.

I removed it today and I put on my backup regulator. It is an Azoo model. It's low pressure gauge is preset from the factory at 40 psi.
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Old 05-08-2007, 07:13 PM   #77 (permalink)
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Default Re: aquariumplants.com co2 regulator

I'm just going to leave well enough alone since mine seems pretty stable right now. I do think I will email them and ask them to send the instructions for mine since I didn't get anything with it. Please keep us posted on how AP.com handled your situation.
Brian
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Old 05-08-2007, 07:48 PM   #78 (permalink)
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Default Re: aquariumplants.com co2 regulator

Ok
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