Surprise, the first user of a bladder I found.
Have you experienced any issues with the bladder?
I am still using it. It holds 500 l of Diesel
Problem was no gauge and I could measure only by the depth
of the top from the ceiling. This worked to 18" down, about 1/3 of volume. So I cut a flange though the top with an opening screw for measuring with a stick. That leaked a little fuel and I had to reseal it. But then the leak continued. It was not my screw but I fund a tiny invisible 1/8" cut 5" above one of the corner fastening straps. My only explanation is that I had filled the tank to really full to a bulging maximum and then went on the ocean in 6" seas where there was extreme stress on the material at the corner. I put a hypalon patch from my AB dinghy
repair kit on it, which seems to hold well, but no one could tell me a proper repair procedure for Alcryn, the tank material. The navy
sends theirs to repair facilities.
In the near future I will not over fill the tank.
But like you, I am scared of another tear. Never thought this was possible.
So, like you I am thinking of an aluminum tank again, this time well epoxy
coated and raised above bilge water.
One problem I have is that the whole tank won't fit through the companion way. Endeavour
had installed it before the deck
. So I may have to get two half tanks.
I appreciate your thoughts.