It's a simple matter of evaporation as gas flows to the diffuser it carries water molecules from the BC with it. Adding a check valve upstream of the gas flow will not stop the water loss.You could try adding a non return valve on the Co2 line to the diffuser!
hoggie
HiIt's a simple matter of evaporation as gas flows to the diffuser it carries water molecules from the BC with it. Adding a check valve upstream of the gas flow will not stop the water loss.
I have the same problem but just live with it you can try mixing glycerine from any chemist with the water that will slow down the evaporation quite a lot.