The tank was made from LLDPE.  Make sure your weld rods are the exact same 
material!

Bob Boyer
S/V Rainy Days (1983 C&C Landfall 38 - Hull #230)
Blog: dainyrays.blogspot.com
Email: dainyr...@icloud.com
Annapolis, MD 
(Presently in Baltimore MD for the summer)

> On Sep 6, 2019, at 6:31 PM, kelly petew via CnC-List <cnc-list@cnc-list.com> 
> wrote:
> 
> My water tank is leaking again. I want to attempt a weld to repair it.
>  
> It is a Kracor polypropylene tank, but the labeling details have faded over 
> time, and no longer legible.  I don’t know what kind of polypropylene was 
> used to construct the tank.
>  So, the question is, do I use hi-density OR lo-density polypropylene?  Or, 
> does it matter?
>  
> Thanks!
>  
> Pete W.
> Siren Song
> C&C 30-2
> Deltaville, Va. 
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