We also did a manual standpipe for two piers just north of Boston 5-6 years ago, 4" galvy40, pre-primed gray, swing joints, and all flex couplings and doubled up the 4-way braces. Slight tidal fluctuations, brackish water, nothing over 2'. The Yacht Club wanted to install gas islands at each end (+/- 125') so the requirement for FDV's. The FD used it all summer for training and I believe every summer since, I know last summer they did; we got a call for a broken FDV handle. Seemed to work fine but I would suggest Sch40 and prime it, we sprayed the bolts on the galvy couplings while under hydro too. Not an easy job for fat guys in prams but it was a nice change. :) Tom 'FGIP', still there under the dock.
Rich, I think you were still with FM when this happened but down where the harbor tours leave from there's a floating dock attached to the fixed pier by a gangway. We ran a pipe along the gangway with that double swing joint (all flex couplings by the way) that I described earlier at both ends, and as far as I know there's been no problem. I have a concern that it might leak at a joint or two but no more than hose couplings so I doubt if it would be an unsurmountable problem. _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
