building control now advise a fall of 1 in 40 which equates to 25mm per metre, however I belive that 1 in 80 is more than adequate 12.5mm per metre, I think if push came to shove you could get away with 1 in 100, 10 mm per metre,
Steve
1/8" per foot
The volume of the pipe is [ (pi) x (Radius)2 x (length) ].The radius of the pipe is 50 mm = 0.05 meter.Volume = (pi) (0.05)2 (10) = 0.07854 cubic meter (rounded) = 78.54 litres.That's the volume of the pipe. We have no way of knowing how much watermay be in it. It may be empty, or full of spiders, etc.
The sewage pipe from the home to the tank must drop from the horizontal between 1 in 80 and 1 in 40 to ensure the water and solids stay together in transit.
Here we have a triangle with angle A 7.5deg and opposite side O 13m, and we're looking to find the hypotenuse H which would be the drain pipe. Remember sin A=O/H, so H=O/sinA. H=13/sin7.5= 99.6m
No. If you think about it, upstairs toilets actually drain through the walls and down under the foundation and footings, so you would have a 100% slope there. You can have too little slope, but never too much, since gravity is actually what drains a toilet. Yes you can. Pipes that run vertical are not a problem because friction is not acting on either the solid or the liquid matter. Where a pipe is sloping steeply the water can run away leaving solid matter behind.
2.5 m
Vertically it is unrestricted
Pipe with a Nominal Bore of 4 inch (100mm) Outside Diameter 114.3mm
inlet will be 100mm osma type collar to receive 100mm plastic pipe or on a commercial installation may be larger
1m over the 60mm
Given one invert, and the length of the pipe and the slope of the pipe, you multiply the the length of the pipe by it's slope (expressed as a decimal ratio) and add the result to the known invert.
For proper fall. Pipe should slope 1" for every 8'.
When installing a water heater discharge pipe, it is important to follow regulations that require the pipe to be made of an approved material, have a proper slope, and terminate in a safe location. Best practices include using a dedicated pipe for the discharge, ensuring it is properly supported, and avoiding any obstructions or bends in the pipe.
ANSWER: the area of the 100mm (10cm) pipe is pi times it's radius squared which equals 78.5 square cms.The length is 6 metre, which is 600 cms. Therefore the volume in the pipe is 600 x 78.5 cubic centimeters which is 47,100 cc's. A thousand cc's is equal to one Litre. Your answer is 47.1 Litre.
Wouldnt that depend on the temperature as there is something caled " Pressure / temperature relationship
With a level
The best practices for installing a 4" cast iron pipe in a residential plumbing system include ensuring proper slope for drainage, securely connecting the pipe joints with appropriate fittings, supporting the pipe adequately to prevent sagging, and following local building codes and regulations.