myog dry bag gravity filter not so dry ??

I bought the same bags for the same purpose…same results. Slow leaks from the taped seams. The tape application seemed very poorly done, re-taping could possibly work.

The easier thing to do would be to just pick up one of the sea to summit ultralight drybags. They're consistently waterproof (or mine are at least), pretty light, and low cost. Not as cheap as the walmart ones, but they actually are dry.

You get what you pay for at Wal-Mart. Your source for cheap plastic crap.

+1 on the S2S bags.

had a feeling that was the case lol

I've used dry bags to haul water from springs to shelters. I at least one of them was a Wal-Mart bag. They were sufficiently tight for that purpose, but I always got them wet when I filled them, so it's hard to say whether or not there was some leakage.

I recommend using a platypus container. Sometimes you need a little pressure to get those Sawyer type filters flowing. The Platy can be squeezed for that purpose.