Identify & Fix Your Old GROHE Shower Valve(plumbing101.i234.me) — A GROHE valve that’s wobbly and hard to turn usually needs a new cartridge, not a full replacement. The challenge is figuring out which cartridge you own, especially on older installs with no local shutoffs. Here’s a clear plan to identify parts and rebuild safely. Q:… Continue reading Identify & Fix Your Old GROHE Shower Valve