PE pipe garden irrigation - connection for groundwater use

Hello everyone, I need some help.
The following: our neighbor has groundwater and we can also use the groundwater. At the moment, he has a tap with 2 faucets, a garden hose is connected to one faucet and goes across the lawn to our property. Now we want to lay the whole thing underground, I don’t know how a normal garden hose tolerates that, so I thought of PE HD pipe. In our garden, we have a water tap where the garden hose is connected at the bottom. All with normal hose connectors.

How can I connect the PE pipe only to the groundwater tap and how can I connect the PE pipe to the water tap at our place? Is there some kind of hose connector for PE pipes or how does that have to be done?

Just go to the next hardware store and have a look around. There are, for example, PE connectors with external threads, onto which you can then screw the "Anschlussnippel" for, for example, garden branch connectors.

Or you lay a meter of pipe in the ground and pull the hose through it, then if it ever breaks, you can pull out the hose and push a new one through.

also a good idea, but we have now laid a 25mm PE pipe, if it ever breaks I will put a 3/4" hose in there