Cistern for garden irrigation - Which pump?

Ok. So filter rather on the pressure side. Any recommendation for which filter? And to protect the cistern from dirty water, simply hang a filter basket on the inlet? Everything should be reasonably understood so far. I will then simply lay the PE-HD pipes before the terrace is gravelled and lead them to the appropriate locations?

I personally know three installations with the Tipp (AUT) by now. They have been running without problems for years. Yes, the pipes belong in the ground. Do not use the switches from Gardena! Use PE-HD pipe for drinking water or PE100 pipes. Lay them under the terrace and let them stick out at the top.

Diameter of the pipe/hose? Presumably 25mm?

Better dn32. Less loss. Price-wise it makes almost no difference.

I personally now know three installations with the Tipp (AUT). They have been running for years without problems.

Difficult question regarding the pump. At Globus Baumarkt there is a best price guarantee, I will inquire about what that is all about. If you could get it there at the usual market price of €320, that would be good. And you would have 7 years Globus warranty.

The more I compare the Tipp AJ 4 Plus 100/57 AUT and the Oase ProMax Pressure Well Automatic 6000/8, the more they seem almost the same to me. Both in terms of technical data and appearance. I could almost imagine that they come from the same manufacturer. But no idea who manufactures what here.