HDPE Clean outs
HDPE Clean outs
(OP)
I am an inspector on the construction of a large recreational facility. I work for an engineering firm who have been hired by a Town who owns the facility to oversee the Towns interest. We didnt design or engineer any part of the facility. Part of the design includes running a 200mm high pressure HDPE sanitary force main about a mile up an entrance road to tie into the Towns sanitary system. Included in the design are 4 cleanouts spaced along the forcemain. I have worked on a few construction projects involving sanitary force mains but none of these projects had cleanouts. The engineering firm who designed the force main is the mechanical engineer for the building and I don't think their forte is designing force mains. I was wondering if its the usual practise to have cleanouts on a HDPE forcemain?





RE: HDPE Clean outs
RE: HDPE Clean outs
“The beautiful thing about learning is that no one can take it away from you.”
---B.B. King
http://waterhammer.hopout.com.au/
RE: HDPE Clean outs
On pump startup, the forcemain should be designed to have a velocity of approximately 3.5 feet/sec. A fluid velocity with that speed is adequate to resuspend solids that will settle out when the forcemain stops.
If cleaning was necessary, a Contractor will insert a pig and run it through the entire forcemain.
http://water.epa.gov/scitech/wastetech/upload/2002...
RE: HDPE Clean outs
Richard A. Cornelius, P.E.
WWW.amlinereast.com