PRV/100psi/Hot Water Heater

[diyhah]

100 PSI, has been for 30 plus years. Should a PRV be installed for the irrigation system and for the house, one for both?
Reliance 501 52 gallon water heater installed in summer of 1992; no expansion tank. Has supported a family for 10 years and now a retired couple with a "clean freak" member. It is still working just fine, always has worked just fine.
Do we really fix something that does not obviously appear to be broken? Probably jinxing us with this post.

 

[Master Plumber Mark]

100 psi is fairly high for the house... it does put a lot of stress on the fixtures..
for the irrigation system its not necessary at all..

you have done fine with the heater so far but its time is running short for sure...

installing a prv for your house is not a bad thing to do and crank it down to about
70 psi inside.....

murpheys law says to wait till the heater finally goes out then install both at the same time