German agencies fear Nord Stream 1 may be unusable forever
(www.reuters.com)
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Could they maybe just blow air into it to help keep the water out? Maybe include some anti corrosion material. Don't think they would need so high a pressure as the gas required.
Well, constructing something under water or laying completed pipe under water is different than water unintentionally getting into it.
See: Flint. Where changing the water supply source changed the pH and corroded the coating in the pipes and caused lead to leach into the water supply.
Interior piping that is never meant to touch a certain type of water is different than exterior piping that is.
Yes, understand it's quite different from an overland line.
Maybe pump fresh water through it.
Cap it and put in new pipe.
Agree, I figure this could somehow become a white elephant in a couple of years though.