Ah that must be what happened to me. Because I turned off my CO2 at night, water would creep back sometimes. The only issue is, is that not what check vavles are for, to stop water? On Mon, Oct 19, 2009 at 8:42 AM, Doerr, Jesse <Jesse.Doerr@fei.com> wrote: > My experience with plastic check valves is that they work fine for CO2 > until they get wet. Once water gets onto them, it tuns into an accid in > the CO2 and the plastic starts melting away. > > Jesse > > (running DIY pop bottle CO2 infrequently and irregularly) > _______________________________________________ > GSAS-Member mailing list > GSAS-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/gsas-member > _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member