Deburr after using a pipe slice?

[cotton_250]

Is there any need to de-burr a pipe after using a pipe slice?

I want to add some isolator valves, but I don’t want any swarf in the pipe after de-burring.

 

[oldbuffer]

1. Best practice is to deburr. Something like the Monument Tools MON365F, or if only one or two to do, a half round file if you already own one.
2. Idea is to stop bits of e.g. cloth getting caught on a burr and a bigger obstruction building up. Unlikely to occur in a central heating system.
3. The pipe slice won't leave swarf, but can leave sharp edges.
4. The deburring action may leave small swarf particles. No usually a problem.

 

[cotton_250]

I'm adding a couple of isolators under my kitchen sink, so I don't want to get any swarf in the cold water supply.

would it be better just to cut it with the slice and leave it?

 

[oldbuffer]

1. With mains water, as soon as you turn on the tap, any small swarf will be washed out.
2. If the hot is from a combi or unvented cylinder, same as 1. above. If fed from vented hot water cylinder on 1st floor, ground floor should be washed out as 1.. If on same floor, it will probably just sit there.
3. If you are really worried about swarf, cut with pipe slice and don't deburr.