Is there a product to run through a rowenta pro garment steamer to eliminate build-up?

Page 5 of the manual onwards Lenora

https://images-na.ssl-images-amazon.com/images/I/81Qca7gcYWS.pdf

https://www.rowenta.ca/en/instructions-for-use/Products/Linen-care/Garment-steamer/csc/GarmentSteamer

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All the Manuals to all of the Rowenta Steamers.

https://www.rowenta.ca/en/instructions-for-use/Products/Linen-care/Garment-steamer/csc/GarmentSteamer

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You have a build up of water In the hose. Sometimes happens because the hose is too low to the ground. Try stretching the hose up and tap it and the water should travel back down the hose.
Another reason could be that you are using too much steam for that particular fabric.

Check this site out Terry,if not their let me know. Rowenta IS8100U1 A6 Steam Brush Parts

Look at the manual again maybe theres a button that you have to turn on. Or call the nearest repair man maybe he knows or can tell you.

Rowenta IS8250 Garment Steamer instructions are no longer available from Rowenta.

Hi, Try puting a cup of white vinegar in and let it sit over night. It should disolve the build up of calcuim. Also try CLR it also will work. Good luck.

Vinegar is great for any mineral deposits for coffee pots and irons.

try using CLR in it or use white vinegar or even coffe pot cleaner

the loss of steam is from usually from a barrier or o-ring or some sort of insulating material it has to be sealed because if it is not the the steam will not build up the pressure required for adequate cleaning power, try to seal up where the water is coming from, and yes you should be able to use something to get rid of the build up just make sure you rinse it all out so it wont mess anythng up and tap water is fine you will just get that build up from it cause of the chlorine and other products in tap hope this was helpful:)