ms.mikan,
Who can be NOT jealous?
Whoever has heard of 千畳敷カール will be green with jealousy.
But let me go back to the topic of 源泉.
You say 源泉掛け流し is not always good.
You must be right.
You and your husband have so much experience with 温泉 all over Japan.
So I'm really glad to hear that your husband likes 須川高原温泉.
I should go and try 須川高原温泉 again.
Let's enjoy 温泉!