In article . com, jim says...

Remember this hose is fairly soft and will crush if ground shifts
suggest you use the harder underground irragation hose more money but
much better hose for job depending how cold you get whether you need to
go down to frost line ,if no heavy rains durring winter put back into
sewer by use of valves, use abs in house. Good luck
wrote:

I have a non-perforated drainage pipe running my sump pump discharge downhill to
a drainage ditch in the back (woods). There is a PVC grate over the outlet to
prevent critters from making the return trip.

It's in a french drain that has a perforated pipe running alongside it, rocks,
gravel, cloth-covered, because, in this clay soil freeze-prone region, whenever
thou diggest, thou puttest drainage. It helped a wet area of my yard
tremendously.

Cheers,
Banty


--

http://news.bbc.co.uk/2/hi/middle_east/5222154.stm