My grohe intergrated grohhmix model 34 436 has developed a small drip after turning off shower. Should I replace stop valves or thermoelement cartridge?? Or are there just washers that can be replaced??

The water shut-off valve is leaking, thus not completely shutting off the water supply to the unit. Need to be repaired/replaced.

When you turn off faucets other than your tub or shower you will note that the water stops fairly abruptly. Not so with a shower head or tub spout. Some water always dribbles out even after you have turned it off. This small amount of water then evaporates leaving behind the iron that was dissolved in your water. This also happens if any faucet has a slow drip. There are products that will easily remove the rust stains. CLR, Iron Out, or Iron Ike are all good products that will remove the stain. Available at hardware stores, plumbing supply houses, and, ugh, Home Depot or Lowes. Please support your local business owners by purchasing there.

Replace the rough in valve

Hi Bryan,

The leak you're seeing originates at the hot / cold water valve(s) itself. Most newer homes have valves that automatically adjust the temperature of the water to prevent scalding. Your Grohe Avensys, like many reputable makers, have warranties on their products and may make replacement parts available for free - if you are still under warranty - by call their customer support lines.

Generally, you will not be able to get free replacement parts at a hardware store, plumbing supply store, etc. You must call the manufacturer directly. Of course, you will have to pay for these parts at those retailers - if the valve is out of warranty, been replaced by the manufacturer under warranty previously, etc.

Your first step will be to identify the valve model. This information may be near the manufacturer's name - or may require locating the manufacturer's web site for visual comparison. Either way, you'll probably need to contact the customer service representatives to get help with replacement parts. They should be able to select the parts that you need to solve the problem and provide them along with printed removal & installation instructions.

Contact links for Grohe USA & Canada
Contact links for Grohe UK

I hope this helps & good luck!

Hi!yes you can do-it your own.You must have some tools to remove the valve then you can replace it by your self.

Your mixing valve(faucet) has a bad valve and is allowing the hot water to bypass and leak thru shower. You should replace the bad mixing valve or the faucet to repair and stop the leak.

valve should have a gear like deal under handle that may need to be adjusted

the problem is in the shower valve not the head,....you should get all info on what the valve is and call someone who knows how to do these repairs,..don't do it your self if your not familiar with these types of things,..you could make a big mess,.......shouldn't cost much for an experienced person to take care of this,........good luck, cracklin joe

Hi johnparker,

The dripping is caused by the ceramic cartridge leaking. It is a non servicable part.

Couldn't find the model number listed but here is a Talia schematic.

http://www.grohecatalog.com/product/25596/

The replacement cartridges are list as 4 and 5 in for hot and one for cold. Also consider replacing part #7 it is a seat.

Good Luck and please rate this response, Phil

hiit sounds as though the diverter valve is sticking in the mid position although you have turned it to the floor spout as you call it!!
Also it sounds as though the seals are possibly leaking causing the plasterboard (drywall) to get we, or possibly a joint may be leaking. Advice access the pip-work valve etc run shower & check with torch (flashlight) to see where its coming from?
Rectification work replace seals/repair leak...replace diverter valve assembly.

Kindly

Richie (UK)