Install an expansion tank just after the inlet valve of the water heater. Adjust the air pressure in the expansion tank to match the water pressure you read at a hose bib. You will need a hose bib water pressure gauge that sells for about $12 at any home improvement store. You will also need an air gauge and an air pump to adjust the expansion tank pressure.

You're the only one who told me what to do when the cardboard ring is ruined, thanks.

😢😢😢

Very good Chris