Good question, I just bought 4" sch 40 that's rated 220 psi for a head of 130'. You can figure the PSI from the head and then use some multiple to get the max you might experiance from water hammer. Maybe you could use the strong stuf at the bottom and lighter weight toward the top?
--- In [email protected], "roscoebanacek" <[EMAIL PROTECTED]> wrote: > Is there a particular type of PVC that is unacceptable for heads over > 200 feet? Schedule 40, green sewer pipe, etc. In other words, how > cheap can you go before you're in trouble? ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/FGYolB/TM --------------------------------------------------------------------~-> Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
