Gummers shower bought 18 years ago

We haven't kept the paperwork for a couple of gummers showers bought 18 years ago. The only indication of which model they are is A&J Gummers 1861 on the valve handle. We need to replace the thermostat. We think the Sirrus by Gummers Ther,ostatand Piston SK1500-3 looks like it will fit. Can you help at all?
Asked 6 years ago by Sue
The shower in your image is of the Gummers 1850 Antique exposed shower.

This particular shower valve can be serviced and will almost definitely only need new seals fitting to the cartridge if you want to save yourself money.

This type of brass cartridges will need serviced every now and then normally when they start playing up with any of the following symptoms.

If you are experiencing the following problems the seal kit will solve these issues and is the cheapest solution.

The shower head is dripping when the shower is switched off
The shower valve is stiff to operate
The shower valve wont shut off properly
The shower temperature fluctuating hot & cold
Water is leaking through the front of the cartridge

If this is the case - I would suggest either fitting another seal kit to the cartridge or replacing the actual cartridge internally.

Thermostat -
You can also test the thermostat or buy a new thermostat or piston via this link provided - www.showerdoc.com/grohe-avensys-wax-element-00798000

This shower and the spares diagram can be found via this link provided - www.showerdoc.com/sirrus-ts-1850-antique-shower-spares

You can buy the cartridge SK1850-2 which is what is in your image or you can service the shower cartridge with a seal kit on the same page as part number SK1850-1 - The seal kit is the cheapest way of repairing your shower and the cartridge / internals is the most expensive.

A new replacement shower can also be found to the right of the spares diagram via the above link.

You will also find instructional videos on the seal kit page on how to service your shower or replace the cartridge.

Answered 6 years ago by Liam Corrigan

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