If you sat the bend to allow the outgoing drain to sit dead level, then the vertical soil pipe would then be 2.5 degrees off vertical.... A rest bend will have a 'foot' which is designed to support the bend, and in the case of Wavin's Osma range, their rest bend now has a length of pipe attached for the initial drain run, so theoretically can only be laid one way round!
If it makes life easier then the Hepworth Supersleve clay rest bend is a true 90 ° ......
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local