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Unread 01/14/2015, 04:07 PM   #71
alanle
Registered Member
 
Join Date: May 2013
Posts: 307
Quote:
Originally Posted by dnh828 View Post
So I'm between a few regulators. My preference would be to buy one on amazon if possible since I have some gift cards to use up there.

The only one I found on amazon that wasn't super pricey is this one: http://amzn.com/B003GMBT7M

But it would need the CGA 320 connector I know my tank has.

This regulator seems like a good deal on a name brand brass unit: http://r.ebay.com/2YEzvH

This guy seems like stainless and possibly nicer, would love an opinion:
http://r.ebay.com/dQ6scI

This brand wasn't mentioned in the article so I'm unsure.

Another AGA:
http://r.ebay.com/zTbdtT

I think it is worth it to try and get a regulator with a CGA 320 connection already on it, as that connection will cost around $20 from my adminittedly short shopping.

I also am going to be needed a ph controller. I don't think I want a full reef controller, so how I would I hook up this guy: http://r.ebay.com/lqfO4d to a Milwaukee MC122 or similar.

I already found that hoke 1300 series metering valve listed on Ebay that was given here, that should be here in a few days.

All in cost for all of this will be $313 assuming $100 dollars for the regulator. Should I just buy the fittings (like elbows etc) at a local welding supply shop? I live in Houston so I'm sure there are a few around.

BTW I really liked the article, it was what pushed me away from investing in a dosing system and deciding to build my own reactor from various used bits.
I would opt in for the Airgas regulator on Ebay. It's a better regulator than the one on Amazon. It comes with the CGA320 nipple. You save $25 on this part alone. However, it's a used unit and has a chance of internal leak. You should do a leak test (mentioned earlier in this thread). Seller is taking returns, so you don't have to worry if it leaks. You will also need the Burkert solenoid and power adapter. Contact me if you can't find it. I have a few extra.

Here are the fittings you will need for the assembly:
1) 1/4 x 1/4 hex nipple
http://www.ebay.com/itm/Brass-Pipe-H...39b702&vxp=mtr

2) 1/4 female NPT x 1/8 male NPT
http://www.ebay.com/itm/Swagelok-Brass-Reducing-Street-Elbow-1-4-Female-NPT-x-1-8-Male-NPT-B-4-RSE-2-/400628585893?pt=Pneumatic_Hydraulic_Valves_Parts&hash=item5d475315a5

3) 1/8 female NPT x 1/8 male NPT
http://www.ebay.com/itm/231452971272?ru=http%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_from%3DR40%26_sacat%3D0%26_nkw%3D2314529 71272%26_rdc%3D1


4) Swagelok reducer 1/4 tube x 1/8 NPT (this parts connects CO2 tubing to the needle valve)
http://www.swagelok.com/search/find_...7-a5d3fd3672c3

Other parts:

1) Bubble counter (this inline Fluval bubble is what I use at home. Very easy to refill the water).
http://www.ebay.com/itm/Fluval-CO2-B...item58a822f391

2) Check valve (connect this check valve between the bubble counter and the needle vale to prevent water from entering your needle valve.)
http://www.ebay.com/itm/One-Way-Stai...item233601e976

-Alan


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