Rare Grohe shower valve teardown in Sandy | Mountain Man Plumbing

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Title: Rare Grohe shower valve teardown in Sandy \| Mountain Man Plumbing
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- The storybehind the photos.
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← Past work MOUNTAIN MAN PLUMBING / ON THE JOB Sandy, Utah ↗

Sandy, Utah / Bathroom Plumbing & Fixture Repairs

# Rare Grohe shower valve teardown in Sandy

We got called out to Sandy, UT for an older Grohe shower valve. It’s a German design, very high-end, but not so common in Utah.

**Mountain Man Plumbing** Published Sep 11, 2026

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Green plastic temperature control piece seated in black housing on brass Grohe shower valve body during Sandy UT service

Mountain Man Plumbing documents the green temperature control on a rare Grohe shower valve body in Sandy, UT.

### Read all 8 photo captions

1. Mountain Man Plumbing documents the green temperature control on a rare Grohe shower valve body in Sandy, UT.
2. Mountain Man Plumbing pulls the Grohe black housing and green control forward on the brass valve in Sandy, UT.
3. Mountain Man Plumbing exposes the brass Grohe valve stem and threads after removing outer parts in Sandy, UT.
4. Mountain Man Plumbing shows the chrome oval trim with the green Grohe temperature control still in place in Sandy, UT.
5. Mountain Man Plumbing leaves the chrome oval shower trim in place on the tiled wall after the Sandy, UT Grohe check.
6. Mountain Man Plumbing shows the open black housing on the brass Grohe valve after removing the green piece in Sandy, UT.
7. Mountain Man Plumbing holds the removed Grohe thermostatic cartridge from the Sandy, UT shower valve for inspection.
8. Mountain Man Plumbing holds the broken green plastic temperature plunger from the Grohe valve in Sandy, UT.

**THE WORK**

Bathroom Plumbing & Fixture Repairs ↗

**THE PLACE**

Sandy, Utah ↗

**THE PHOTO ROLL**

8 original job photos

FROM THE JOB

## The story *behind the photos.*

Mountain Man Plumbing
Sandy, Utah

We got called out to Sandy, UT for an older Grohe shower valve. It’s a German design, very high-end, but not so common in Utah. This was the first one I’ve ever encountered, and looking online for more information led to not many results, so it felt important to document how this valve works and comes apart.

What made it interesting is that this valve does not operate like most. It has the temperature controller before the shower shut-off valve. We initially believed it to be the thermostatic cartridge contributing to the problem. Once we got into it, another issue showed up: the little plastic plunger that controls the temperature when you turn the valve on and off was broken.

We later identified that was due to extremely high pressure at the house. The pressure reducing valve had failed, leading that piece to break. For anyone curious how it comes off, that piece just spins right off the shaft. We weren’t able to complete the repair this time, but that’s OK. We will be back to change the pressure valve and finish this at a later date.

A CLOSER LOOK / 08

Hand holding broken green plastic temperature plunger from Grohe shower valve after high pressure in Sandy UT

Mountain Man Plumbing holds the broken green plastic temperature plunger from the Grohe valve in Sandy, UT.

MOUNTAIN MAN PLUMBING

EXPLORE THE SERVICE Bathroom Plumbing & Fixture Repairs ↗Plumbing in Sandy ↗

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