Question about Grohe Integrated 1/2'' Shower Thermostatic Rough-In Valve With Stops - 3412

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I'd like to install 1 shower had and one hand held shower. What do I need to have ?

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Well you can do a 3 way shower valve , or a mixing valve with 2 control valves. or you can do just to regular shower valves one for each of the heads you want one for the rain and one for the shower head. this way is cheeper and you can have one on hot water and the other cold water or the other way around or both the same temp.

Posted on Apr 27, 2010

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I have a problem with low hot water pressure can you help would an elec shower help


1) If possible, it is Best to solve pressure problem before installing new shower.
http://waterheatertimer.org/Low-hot-water-pressure.html

2) If the cold water has good pressure, then Electric shower could fix problem ... but shower would have to be connected to the cold water line and not the hot.

3) Seems the expense of adding a electric shower would be greater than having plumber fix low hot water pressure.
Assuming you have access to plumbing pipes, and this is not apartment building.

Jan 05, 2013 | Water Heaters

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Electric shower just installed cuts out at fusebox after being on for about a minute


10-20-12
Circuit breaker is tripping on electric shower?

This could be absolute danger until more information is known.

1) Breakers trip because they sense heat, because the wire size is too small, or breaker size is mismatched with wire. Or breaker is loose on busbar.
Copy following links to determine correct wiring and breaker:
http://waterheatertimer.org/Color-codewire.html
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html

GFCI circuit breaker will trip because of same heat condition described above, and also trip if ground fault is detected.
Water leaking into element will trip GFCI.
Absolutely you need to get this problem fixed before shower is put back into service.
Call electrician, or the installer, or the manufacturer, or all.
http://waterheatertimer.org/How-to-wire-GFCI.html#spa

Oct 18, 2012 | Rheem EcoSense by 7.4 GPM Tankless Water...

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My contractor installed a 4 port diverter. The hot and cold are ok, but when I turn the shower on, the flow starts in the hand held shower head and not the main shower head. According to Grohe, whichever...


I haven't had a lot of experience with Grohe brand but have had twenty eight years as plumber, 22 years as master plumber and the bottom port of every tub or tub/shower valve that I installed used the bottom as main supply port. As far as the instructions from manufacture like I said I have not used that particular brand much,so I really couldn't say. Hope this helps some. Thanks

Nov 10, 2010 | Grohe Grohmix Thermostat Valve & Trim -...

1 Answer

How do you fix hot water shuts off during shower with Model N-069M-OD installed December 2006?


Try flowing more hot water with your shower. During the summer you end up mixing alot of cold water and very little hot water (because your cold ground water isn't so cold in the summer). When you get close the minimum flow rate of the appliance, it will start to short cycle (fire on and off). Here's some recommended things you can do:

1) Clean the shower head - remove scale deposits and or clogging
2) Widden flow restrictor - most shower heads have a flow restrictor on the back of the showerhead; It consists of a rubber washer with a hole in the center. You can widen the hole using a drill bit.
3) remove the flow restrictor - this should be a last resort

Jul 22, 2010 | Noritz 6.3 Gallon Residential Tankless...

1 Answer

My bosch aquastar 2400 shuts off sometimes during a shower


It sounds like you have a well. Make sure the water pressure does not dip below 30PSI. Otherwise, the gas pipe or the CO2 levels need to be adjusted by a qualified gas technician.

Apr 11, 2010 | Bosch AquaStar 2400ES-NG

1 Answer

I have a thermostat mixer shower but hot water has become minimal recently, even when water is piping hot from the taps? The shower is fed from cylinder tank on 1st floor, and cold water tank is in the...


The thermostatic mixing spool cartridge may be worn out. The low water pressure may indicate sediment in the cartridge as well. This can be easily removed by hand tools

Feb 17, 2010 | Grohe Integrated 1/2'' Shower Thermostatic...

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Flow of water thru shower head is barely a trickle


There is a chance there is mineral deposits in the showerhead openings. You can try products sucha as limeaway by unscrewing the showerhead , soaking in the limeaway for a few minutes and rinsing with water. You may have to repeat this a few times to get it clean.

Jan 20, 2010 | Grohe Integrated 1/2'' Shower Thermostatic...

2 Answers

Shower gets hotter or colder when toilet is flushed.


This is typical for an installation without a balanced valve/anti-scald valve on the shower.

If you are using manual on/off valves on the shower, about the only way to fix this is to install the device mentioned in the previous paragraph.

May 03, 2009 | Rheem Tankless Hot Water Heater...

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Installation problem: Grohmix shower valve 1 1/2'' extension


This is what you should have... Grohe Grohmix Thermostat Valve & Trim - 34436
  • Paraffin cartridge
  • Lever volume control
  • Grip ring temperature control
  • 1/2" NPT female connections
  • Service stops
  • Includes rough-in valve and trim
  • Integrated temperature and volume control
  • Requires Twin Ell (03 671) for shower/tub combinations with diverter spout Note:
  • Requires Twin Ell (03 671) for shower/tub combinations with diverter spout
  • Grohe Grohmix Thermostat Valve & Trim - 34436

    Mar 26, 2009 | Grohe Grohmix Thermostat Valve & Trim -...

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