It is approx 80.4 mm.
most likely 80.4.
11.7 inches
30cm
1.95
10*sin(1) metres = 0.175 metres = 17.5 cm.
Fall = 1 metre*arctan(25 deg) = 1 metre*0.466 = 0.466 m or 46.6 cm approx
1 degree fall how much
11.7 inches
Approx 0.087 metres.
30cm
1.95
It is 32 cm.
it takes the same pressure if the vertical heights the same but since the 45 degree pipe would be longer it would create more flow restriction.
Approx 0.087 metres.
Approx 0.087 metres.
300mm is a very low head, you can't expect much flow through that pipe, but you can work it out from the mechanical energy balance equation.
Half the price of two feet 300mm 12 inches 30.48 cm
Approx 98 centimetres.