Water back flow in Co2 tubing

[Rummynose]

I just baught a single gauge co2 set. i notice that, the water will flow back in the tubing when i switch it off at nite. It is normal?

[juggler]

Use a check valve to prevent backflow of water.
CO2 is rather soluble in water. So it may be causing water to get sucked into the tubing. And as the diameter of the tubing is very small, a little water can start a siphoning action.

[Rummynose]

thakns!

[bclee]

You'd better dry out the regulator well. Otherwise, the CO2 will form carbonic acid with the water and corrode the metal.

BC

[PohSan]

Sorry to restart a old topic.
I observed backflow occurs from my tank to my co2 tank despite check valve installed before bubble counter. My setup is as follow:
Co2 cylinder -> electronic solenoid (with needle valve) -> check valve -> bubble counter -> flipper.

My question is :
1) will water go into the co2 tank and corrosed the tank. My friend told me that the high pressure in the tank will prevent water frm going into the tank. is it true?
2) What is the correct location to install check valve? I suspecting the original made in china check valve does not shut down the backflow well.

3) How to dry up the solenoid valve?

Thank

[hmph]

PohSan wrote:
My question is :
1) will water go into the co2 tank and corrosed the tank. My friend told me that the high pressure in the tank will prevent water frm going into the tank. is it true?
2) What is the correct location to install check valve? I suspecting the original made in china check valve does not shut down the backflow well.

3) How to dry up the solenoid valve?

Sorry, i dunno about qns 1 and 3 but i can answer 2. I put my check valves just right before the reactor. And i put two of them (KS lah). And it works fine for me. The valves are transparent plastic ones with yellow parts inside. Cost about a dollar plus.

[PeterGwee]

You have a defective check-valve....replace it should solve the problem. Whereas your solenoid, it depends how much water actually went in? If it is still functioning, leave it.

[benetay]

Got something to add regarding this topic. Backflowing of Water from the tank to the regular or solenoid can be VERY dangerous.

Solenoid which is using 2 pin plugs without Ground or Earth is dangerous when water comes in contact. The water acts as a conductor here. The Whole regulator and solenoid will now form a circuit for the current to flow through. Therefore it's very dangerous to even touch a solenoid or regulator with current passing through.

Turn it off , air dry it with hair dryer or wait for it to dry up which takes weeks. Please do not touch any electrical devices which contain live current passing through, some are minor while some major.

I feel that safety is more important than solenoid or the whole system is gone.