Search found 2 matches

by westernrenew
Wed Nov 23, 2016 2:25 pm
Forum: Medium Head Hydro
Topic: HDPE Weld Beads
Replies: 4
Views: 4040

Re: HDPE Weld Beads

I suppose it is readily calculable and should be taken into account, but I have not tended to ask for debeading, just erred on oversizing the pipe on the basis that furring of the pipe over time probably might be more significant. It has often been enough of a task to get the contractor / plant oper...
by westernrenew
Wed Nov 23, 2016 2:11 pm
Forum: High Head Hydro
Topic: Coanda screen blocking
Replies: 5
Views: 5128

Re: Coanda screen blocking

My experience is strangely mixed on very similar sites. One site blocks as you say, within an hour, the other on the same watercourse, but a mile upstream, stays clear. The difference is only a reservoir between two, in which very fine weed seems to grow. The bulk of the big stuff is same across bot...

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