Brandrup foldable watertank leaking. Alternative?

[CaliKatt]

After 2 years our brandrup foldable watertank has a leak. Its a small hole that appeared on 1 of the foldable sides. In the below image you can see it in the folded bag, exactly the middle folded joint.
I guess this is normal for this kind of plastic that rests folded in a closet for most of the time.
Now i can buy a new one or was wondering if there are any cheaper or better alternatives?

For reference. I cam talking about this product: https://vwcampershop.nl/kampeerartikelen/water-kampeerartikelen/drinkwatercan-10-liter/

 

[Roger Boeken]

also models with faucet available .
had same problem and switched to this , many years in use now without problems.

 

[CaliKatt]

Can you post a link? And does the brandup fill set fit on it? The hose i mean.

 

[CaliKatt]

I use it only to fill the cali watertank if i am on site so it should fit a small hose, ideally the brandrup fillset i already own.

 

[Roger Boeken]

I use it only to fill the cali watertank if i am on site so it should fit a small hose, ideally the brandrup fillset i already own.

I use it also to fill watertank. https://amzn.eu/d/hcXW26j

on the left in picture you see the size when empty and folded. To fill fresh water tank I have the one on the right without faucet. I use the one with the tap when the temperature gets so low that I can no longer use the water tank.