Subj : Re: hydrogen To : Wilfred van Velzen From : Charles Pierson Date : Wed Nov 18 2020 08:43:35 Hello, Wilfred van Velzen. On 11/18/20 2:38 PM you wrote: WV>>> Probably, hydrogen gas differs a lot from natural gas... CP>> I did read metal pipes would corrode quicker with hydrogen. WV> Possibly. What also might be a factor is the plastic pipes they WV> use these days. They might be more porous to hydrogen, because H2 WV> is probably a smaller molecule, compared to natural gas. That's true. Although I did see something about polyethylene pipes working well. -- Best regards! Posted using Hotdoged on Android --- Hotdoged/2.13.5/Android * Origin: Houston, Tx (2:221/6.21) .