In my limited experience, there are a few things that can cause problems...
Sometimes the mag temp seems to cause a problem. If the mag is too warm, it may not fill properly... (I noticed this when trying to fill butane torches. I end up putting the torch in the freezer for 15 min. on a hot day before trying to fill it...)
With the mag, I will sometimes give it about a 1 second fill, then, holding the mag upright, gently depress the release valve causing a brief jet of gas/liquid from the top port of the mag. This will cool the mag: flip over and fill as normal.
Second suggestion is to try a longer fill count (go up by 1-2 seconds at a time until you achieve consistant performance.
Third thought is that some dirt has gotten into the fill valve. Anyone have any suggestions for cleaning/backflushing?
Louis
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