Does anyone know the general PSI range our return lines handle? We all talk about head pressure but I can’t seem to find anything on the PSI. I know there are a crap-ton of variables, hence the range request, but maybe there’s a max PSI calculation based on max head pressure? Really just trying to find out if my impatient butt needs to wait hours for the pvc cement to cure or if it is only a few minutes based on the Oatey guide. 180 PSI seems high but could be localized pressure close to the return, maybe. Doubting it but maybe someone out there knows more than I. Hoping I can get it all up and running before the bowl games tonight. LoL