Yeah, you can drop by work and have a look at the place. See all the taco stuff :-)

And yes, can be cracked weld from stress cycles. A weak weld or maybe porosity in weld etc.

I can have a look at it and make up a pressure testing set up. I have a spare stant cap. Probably easiest to pressure from one of the outlet inlet barbs.

Alistair 

> On Jul 21, 2021, at 9:31 AM, Bruce Todd <beeceetee@gmail.com> wrote:
> 
> 
>> 
> Hey Alistair - 
> 
> Maybe I can drop it off to you next week and you can give it a good go over as I'll be on my way to Cowichan Lake!  Anyway - checking to see if the GW supplier here in town has another aluminum tank to swap as a warranty.  If nothing is available I'll be going back to plastic for a little while...kicking myself that I didn't keep the plastic tank I had...or where the heck I stored it.
> 
> I find it interesting that after 3.5 months now a leak is appearing - it is very minor and dripping only under pressure.  So how would a seam weld alter over time -  possibly a slight flaw and through the heat of the tank expanding and contracting over the last number of trips a deep enough crack has formed?  If so, you would think testing should involve more than pressure testing.  X Raying the seams perhaps? - That would increase the cost at the end of the day....likely just a big fluke.
> 
> BT
>