Ever since we purchased our MH we've had issues with the hot water tank mixer valve. First year we owned ours this valve was replaced as it was noisy. In less than 3 years it needs replacing again. ...
Is everyone who has problems using a whole house water filter so that some of that crud gets filtered out of the water before it gets to the mixing valve? If not, it may help. We have had ours for 7 years, no problem and unit is 17 yrs old. Don't know if it's ever been changed. Could be 17 yrs old.