ᐅ At My Wits' End – Adjusting the Settings on a Shower Mixer Valve
Created on: 4 Mar 2014 14:08
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DarkmacHello everyone,
I’m starting to get really frustrated. A year ago, we moved into a newly built rental home. When we moved in, the heating and hot water were set to the highest level. That’s why our shower mixer was delivering very hot water.
After the heating technician explained our system to us and adjusted it according to our needs, the shower water stopped getting really hot (only about 32°C (90°F)). So, we called our landlord, who sent a plumber over.
Unfortunately, when the plumber was adjusting the temperature, the window installers were also at our place and needed some information. I couldn’t watch over the plumber’s shoulder, so now I don’t know what settings he changed or where.
Now that winter is over and we have lowered the heating a bit, our shower still does not get properly hot. The water in the separate bathtub or the bathroom sink is nice and hot, but the shower is not.
We have a Grohe thermostatic mixer in the shower, see picture.
What do I need to do to get hot water again in the shower?
Thanks for your help:
Picture of the mixer:
Below it is the Grohe Rapido T
I’m starting to get really frustrated. A year ago, we moved into a newly built rental home. When we moved in, the heating and hot water were set to the highest level. That’s why our shower mixer was delivering very hot water.
After the heating technician explained our system to us and adjusted it according to our needs, the shower water stopped getting really hot (only about 32°C (90°F)). So, we called our landlord, who sent a plumber over.
Unfortunately, when the plumber was adjusting the temperature, the window installers were also at our place and needed some information. I couldn’t watch over the plumber’s shoulder, so now I don’t know what settings he changed or where.
Now that winter is over and we have lowered the heating a bit, our shower still does not get properly hot. The water in the separate bathtub or the bathroom sink is nice and hot, but the shower is not.
We have a Grohe thermostatic mixer in the shower, see picture.
What do I need to do to get hot water again in the shower?
Thanks for your help:
Picture of the mixer:
Below it is the Grohe Rapido T
Perhaps the hot water inlet valve is not fully opened. This adjustment is done behind the cover panel. As far as I understand, the faucet has one control to set the temperature and another knob to turn the water on and off. Such a regulator usually has a 38°C (100°F) mark. The temperature is set to this mark, the water is turned on, and the valves (hot and cold water valves behind the cover panel) are adjusted so that, on one hand, enough water flows, and on the other hand, the 38°C (100°F) temperature is reached. If the heating is turned down, not enough warm water flows through, and the water stays colder.
In short: the hot-to-cold water mixing ratio needs to be readjusted.
With other faucets, this issue might not be as noticeable because the mixing is controlled directly at the faucet rather than at the inlet valves (usually angle valves).
In short: the hot-to-cold water mixing ratio needs to be readjusted.
With other faucets, this issue might not be as noticeable because the mixing is controlled directly at the faucet rather than at the inlet valves (usually angle valves).
Could it be that he lowered the pressure for the hot water?
In our case, the plumber reduced the pressure at the kitchen because it was too strong for me. However, our ratio is correct. Pressure at a showerhead usually doesn't drop enough to be noticeable.
But tell me: is that limescale on your faucet? You should clean it and then dry it after showering – it doesn’t look very nice otherwise.
In our case, the plumber reduced the pressure at the kitchen because it was too strong for me. However, our ratio is correct. Pressure at a showerhead usually doesn't drop enough to be noticeable.
But tell me: is that limescale on your faucet? You should clean it and then dry it after showering – it doesn’t look very nice otherwise.
Hello, thanks in advance for the answers! This all sounds pretty good so far. Where exactly should I adjust the Rapido?
I would turn the two Allen screws (shown in the picture as Pos1 & Pos2), with Pos1 looking like it controls the hot water—are there any fixed rules about which is which?
Regards:
I would turn the two Allen screws (shown in the picture as Pos1 & Pos2), with Pos1 looking like it controls the hot water—are there any fixed rules about which is which?
Regards:
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