why put sand around an EP? for the simple reason, if your soil has the moves roots, frost, sand does not solidifying as the land that it moves around your pipe and thereby prevents movement of the pipe with the consequences this may have.
more sand added to a plastic mesh, can view your hose when you want in a few years to dig the trench and it avoids a miserable sod
now put a jacket or not to pipe outside?
say before I go counter if there is none, no matter.
put one after the counter has the advantage during a water leak (pipe cracked by freezing) and thawing to warn you of this leak
yes a pipe in the ground when he fled the water flows into the ground and we do not notice that when paying the bill. the water filled the tube and just spill has its end. Another advantage of the sheath, if you need to change the pipe, the trench is no longer needed
Thanks for those answers that complement each other well. I did not think a jacket would allow me to see a leak, not stupid!
What interested me is basically expectancy life of my pipe unprotected. Golden Hand speaks of thirty years for my old pipe, is it the same for the new? Because if it only lasts thirty years, I'll gainer.
Say in topics that I know, our practices are often overprotective unnecessary or questionable (for eg 80cm deep identical in Lille, Marseille and Besan├žon )