How can the direction of flow in a properly laid drain or sewer be determined simply from an external visual inspection?
2007-02-03 11:01:25 · 6 answers · asked by Jogey 2 in Science & Mathematics ➔ Engineering
With triangular manhole lids it was our practise to build the access to the manholes so that the "point" of the cover pointed down the way of the flow.
That was when construction of drainage was done by skilled and experienced people who knew what they were doing rather than the unskilled people now being used on construction sites.
2007-02-04 03:37:50 · answer #1 · answered by Anonymous · 1⤊ 0⤋
You might be able to tell like the guy stated above said about the pipe collars.
However, you can not KNOW by a simple visual inspection. You have to use a level to VERIFY the fall.
You may think you can tell, but the eye will play tricks on you. You have to use an instrument.
2007-02-05 18:15:08 · answer #2 · answered by daedgewood 4 · 0⤊ 0⤋
Well the pipework would have an inbuilt "fall" as it was laid in order to assist the flow. The deeper the pipework becomes would indicate the direction of run off.
2007-02-03 19:13:21 · answer #3 · answered by A Teesside Smart**** 3 · 0⤊ 0⤋
Look at the pipe couplings: male uphill, female downhill.
2007-02-03 19:09:34 · answer #4 · answered by Jellicoe 4 · 1⤊ 1⤋
the bells on the pipes will point upstram.
2007-02-06 17:39:31 · answer #5 · answered by bignose68 4 · 0⤊ 0⤋
why cant you just use a spirit level??
2007-02-04 15:09:19 · answer #6 · answered by chris p 3 · 0⤊ 0⤋