Construction costs are currently skyrocketing

Okay wow, our 4.7m3 cistern alone costs €5400 net. :(

Really? Wow.. Ours was about €1200 gross - 10% discount, including delivery. The municipality covered €750 of that as a subsidy. What kind did you get that is about 5 times as expensive? Bomb-proof?!

Simple chess rings will do here as well...

Simple manhole rings work here too...

Yes, BUT: Leakage risk with manhole ring cistern: Improperly installed manhole ring cisterns can develop leaks. Some of these only occur after several years. During installation, it must be ensured that the concrete rings are exactly aligned and properly sealed. AND that, in turn, requires additional labor hours! In terms of price, plastic and concrete are similar.

Have you also already received unexpected bills during/after the house construction? Unforeseeable costs must always be included in the cost calculation: Just last week, a bill came in for nearly €500 for just 1.5 hours of work + 45 minutes of travel: Abwasserröhredichtungspfrüfung. And all the water they pumped in (which was, of course, not little (and that in the very dry summer)) we also had to pay for ourselves :( At least everything was tight. Since we all laid the sewage pipes under and next to the house ourselves, that was already a great relief!! Unimaginable if something had been leaky there...... Uiuiuiui

Waste pipe sealing test.
And all the water they pumped in (of course not little (and that in the very dry summer) we also had to pay for ourselves :(
At least everything was sealed. Since we laid all the wastewater pipes under and next to the house ourselves, it was a very great relief!!
Unimaginable if something had been leaky...... Uiuiuiui

What did they do besides running water in and looking?
That was quick money earned, I would have done it for 400 ;-)

I was on the website of my hot water tank supplier yesterday afternoon to already get a new sacrificial anode (I don’t need it yet, but what you have, you have). In the process, I came across a small price increase since my purchase almost two years ago. 300 potable water tanks 2019: €535.50 gross ==> yesterday: €1,185 (but currently not available)