Is your tank a huge 25 pounds or 2-and-one-half pounds (2.5)??

How big is your tank and what bubble rate?

I concur that you don't need a new one. Just get a needle valve and check
for leaks in yours.

Bob
"Bob Alston" wrote in message
...
Read the pressure off your regulator (the high pressure if a two guage
regulator). If the pressure is well above 500, then "tank dump" is not an
issue. If it is 500 or less, the regulator can be unstable and dump.
(Some
people say 500 and other say 200)

How long has the tank been in use & what bubble rate? My 5 lb tank lasted
8
months on my 55 gallon tank.

Do you have a needle valve? If not, I recommend one. I think Dave now
sells them. If so, suggest you get one from him. they should help have a
stable flow of co2. Also, it appears that they may reduce or eliminate
the
potential for end of tank dump syndrome.

Of course, if you think it is end of tank dump situation, the easiest
thing
is to refill your tank!

Good luck.

Bob
"John Pflum, Jr." wrote in message
...
I need a recommendation on a C02 system setup.

Right now I have the "Gomberg" system with a CO2 tank leading
directly into an eheim difuser that releases into my tank. The
reason I am looking to change is that I get wild fluctuations in
my PH and at times the PH plunges danegoursly low -- to 6.4 or
less. I am pretty sure this is due to the end of tank dump
phenomanon because when I turn off the tank the PH recovers. It
just seems to me that the tank should last longer than it does --
only about 4 months for a 25 pound tank.

Is there a system out there where I can avoid the end of the tank
dump scenario?

Thanks.

--

John Pflum, Jr.
Email: jpflumjr at nuvox dot net