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Old 18-08-2008, 17:45   #31
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Originally Posted by cat man do View Post
Which says Diesel and PVC compatability is EXCELLENT

That means really good, right?
Absolutely .

PVC is resistant to diesel and is actually used in some industrial fuel hoses as the lining to give the hose diesel resistance.

A short section of our diesel fuel fill line is Schedule 80 PVC - it was done by the builder as a way to manage some sharp bends in restricted space. The only thing I am careful of is that if I add an additive to the tank I flush the line with diesel immediately after in case the undiluted additive has some effect (unlikely I would have thought though).

Also, as I mentioned in another thread a while back, our exhaust from the water lift muffler to the transom discharge was fabricated by the builder in Sched 80 PVC with no problems (I rerouted a section of it recently and so was able to inspect inside it and was like new). I actually got rubbished in that thread by some claiming PVC was not diesel resistant but the knowledgable calvalry soon arrived and proved it was by providing some links .

For myself, I would not transpose its chemical resistance into a claim that it was structurally suitable for constructing fuel tanks though, especially if flat paneled.

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