Treated bunk + carpet + aluminum = CORROSION

[Wildey]

Fixing up a pontoon trailer.
New Boat Blanket material was put over pressure treated 2x4's about mid April of this year.
There are small white specs spotted throughout the blanket with very small matching corrosion spots on the pontoons. Its been to the lake 3 or 4 times. I pulled the bunks off to replace them with regular untreated wood.
Question is:
Being the blanket material is new, can it/should it be laundered then placed on the new lumber ? Is there any chance that the bad chems from the treated wood would linger in the material ?
I'm guessing that the corrosion was taking place where the water was trapped in the carpet between the wood and the aluminum. Without the water, it wouldn't corrode.
The conductivity of the water works the evil through the carpet.
Just trying to save him a bit on the covering.
Thanks

 

[JASinIL2006]

I'd be getting rid of the PT wood. I wouldn't want that anywhere near pontoon logs.

 

[Wildey]

yeah, the pt is gone, the question was about the fabric being reused on the new wood. I doubt it would matter. We hosed them off anyway removing any/all of the pt wood remnants/chips/splinters from the drilling and such.
Thanks

 

[airshot]

Why take the chance? Can you replace the toons for less than the cost of carpet?? I would think the carpet cost would be much cheaper!!!

 

[Wildey]

Why take the chance? Can you replace the toons for less than the cost of carpet?? I would think the carpet cost would be much cheaper!!!

Oh yes no, MUCH cheaper to buy new carpet. The owner did rigorous research and determined that the process of the copper ions traveling through the water (and carpet) would no longer be an issue with the copper source removed.
I suggested as you initially. I advised to watch it closely.
Thanks