how to put slope on kitchen waste.

[punch]

Can I put slight pressure on a plastic compression t to enable my 1 1/2 inch Kitchen waste to slope over 1.5 m ? Or can I bend the plastic drain 1 1/2 inch pipe ?
I need 2 waste pipes approx 1.5 m long each, to exit into drain from opposite directions so require to use a plastic compression T. each pipe is about 1.5 m long. As the t will have to be horizontal, how can I get the pipes to run on a slope ?

thanks

 

[Madrab]

Minimum fall is 18mm per meter for 40mm pipe. If you are using a compression T fitting there would normally be enough flexibility in the fitting to accommodate the fall needed.
I wouldn't have 2 horizontal waste pipes feeding into the same T and onto a vertical waste though as you will get backflow along the opposing pipe depending on the volume of water being drained.
I would stagger the outlets into the vertical waste pipe
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[punch]

that's really helpful Rab, Thanks