I used uniseal for the tank/dura skrim, and it was leaking.
This is my very first system I made. When I started adding water with excitement, 5 out of 6 holes were leaking! (used uniseal only)
So, I decided to use Bulk head for at least wood/liner tanks. Before set up bulk head, I need to seal between wood and dura skrim liner.(LDPE)
I heard that Polyethylene calk is safe/good for it. But I can't find a product name of it.
Can anyone help me on locating a product name and where I can buy?

Also, what can I do for the leak between uniseal and bucket? (I made the hole smooth, but it didn't work. It seems the hole was enlarged. I tried tape, it didn't work.)