Hydrogen and Chlorine Reaction - YouTube
Here is a demonstration of the chemical reaction of hydrogen gas and chlorine gas.
On the upside of the downside of gas build up in no flow conditions. The actual likyhood of an "expanding event" is extremely small. It's not like the things are going off every day or 2.
My point is, dont shy away from a SWG because other people didnt follow the rules. A SWG is a great way to chlorinate a pool.
Good point ^^^^ I love my SWG.
Hydrogen and Chlorine Reaction - YouTube
Here is a demonstration of the chemical reaction of hydrogen gas and chlorine gas.
One question is what initiates the reaction?
If the cell is clear, or if the gas reaches a clear window, like the window of a check valve, sunlight might initiate the reaction.
In the absence of light, I suspect that the reaction might be initiated by chlorine or hydrogen radicals generated at the plates.