check valve ?

[lokobreed]

http://www.bigalsonline.com/catalog/...tegory_id=1633

Is this the type of check valve I would need on a Co2 sysytem, I have the 20 lb co2 tank and Millwaukee All In One Regulator with a Power Reactor...

If so how many should I get and do I need to get any tubing?

[Rolo]

Of course you need tubing...how are you going to get the CO2 into the tank?

That check valve will do...I have the penn plax one and have no qualms about it. You just cut your tubing in one place and insert the check valve. Make sure you do it correctly, by putting it in the direction of the airflow.

[lokobreed]

My reactor came with tubing and was told thats all the tubing I need...
Is that correct?

If so what I mean was do I need more tubing for the check valve (sorry should have made that clearer)

Also do I only need one and where to I place it?

[Rolo]

You only need one. Cut the tubing and reconnet the tubing with the checkvalve (there are too ends of the check valve). Place about a foot from where the tubing comes out of the tank.

[Wasserpest]

You don't need extra tubing, just cut the airline and place the checkvalve inline. Theoretically you need only one. Those cheap ones are made for airpumps, and they don't hold up too well with CO2. I would get a couple and check/replace them once in a while, perhaps every 6 months.
You can buy some really expensive ones, around 40$ for German metallic CO2 check valves, the way to go if you want and can afford the best.

[Fishbulb]

This tetratec check valve will specifically NOT work with CO2. I have one on my system that i bought a few days ago. A few days of the pH controller turning off now and then, and the water now goes right through the valve.
FB

[lokobreed]

Whats a cheap Check Valve that will work?

[Fishbulb]

let me know if you find one. i'm still looking. I think the main problem is that most people keep constant pressure in their co2 lines because they run the co2 constantly. I suspect most of the typical cheap air quality valves won't work. I may bite the bullet and move up to the very expensive co2 safe ones.

[Wasserpest]

I have been using the Tetratec for my DIY lines. No expensive equipment here (yet). They work fine for at least a couple of months, then I just replace them. For pressurized CO2, you might want to invest in something better.

http://fins.actwin.com/aquatic-plant.../msg00339.html

[Momotaro]

Don't play around. Get a decent check valve!

You spent almost $90 on a regulator and now you are looking to get off cheap with a $1.49 check valve? Once water gets into the regulator, it is shot. There goes your first $90 and the next $90 to replace it.

Find a decent CO2 resistant check valve! You will not regret it!

Mike

[compulsion]

like momo said, get a good one, its all to the good picking up a cheapo check valve, but your gonna be pretty narked when your whole tank empties over the floor, into your sol etc etc.

[Rolo]

I use the penn plax checkvalve and it has never failed me.

This kind of goes with your other post concerning a pH controller. You will only need to deal with back siphoning if you get a contoller since. The only time water can backsiphon is when the CO2 is off. If you just leave it on 24/7 (Which most people do) then there is constant pressure and you won't have to worry about backsiphoning. You can save alot of $ from an expensive pH controller and checkvalve.

Does anyone know if the Milwaukee regulator prevents end-of-tank-dumps. If it doesn't I will then still invest in a checkvalve b/c that is another senario that water can backsiphon. If you make sure your tank never runs empty though, this won't be a problem.

[Scorpion]

My cheapo WalMart brand valve still works ok after almost a year.

[aquatic-store.com]

denerelle makes a nice one co2 proof or we sell a metal one to. this thing is thick!!