This problem is one that is not restricted to a singe owner or two, but is a problem that many with 21s have been experiencing. Be very careful in adjusting the tempering valve, but it should cure your problem.
Gary and Dee, Zowie and Bowie (traveling cat sibs)
2019 Cornerstone 45B, X15-605hp, Imperial, Spartan K3,
2013 Honda CR-V toad, Demco Excali-Bar II,
Demco Baseplate, Demco Toad Light system, 73 de W5FI