Hello; I was correct for a change. Here are some links. The first one is a you tube of a DIY type.
https://www.bing.com/videos/search?...8B16AB906DD5300E065C8B16AB906DD5300&FORM=VIRE
https://leaksmart.com/
http://www.floodmaster.com/
https://www.homedepot.com/p/ValveSentry-Automatic-Water-Shut-Off-Device-ValveSentry-Device/205177994
wow its amazing the products out there that i had no idea about.
I really lile this.
Would make water changes a lil safer