Scum Forming on Water Line in Plant Container

I have been growing plants in bottled water for over fifty years. Recently we installed a whole house water filter and I now have a rim of scum (?) on the top edge of the water and on the container. The containers are cleaned thoroughly and the water is changed every month and it does not matter the size of the container or the type of plant.

Cause? Solution?

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September 19, 20180 found this helpful

It is all chemical reactions. The bottled water filters out more or different minerals than your home filtration system and the air and plants photosynthesis reacts with the water and minerals to form the scummy mess.

The company where you purchased the home system from should be able to tell you what they filter out. Your water company can tell you everything in the water to start. You can try to eliminate the extra chemicals maybe by adding a Britta or other systems that remove the others

We use regular tap water for all our plants and I have to change my rooting plant water every few days or it stinks up the house.

Someone on this site may know exactly which chemicals/minerals are the culprit (s). I just know it is chemical :(

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September 19, 20180 found this helpful

Put a couple of drops of chlorine on the water. If should take care of it.

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September 21, 20180 found this helpful

It's possible Judy's suggestion would work but if it is any kind of salt from the water softener then it probably will not.


You should call the water softener company or look them up online and discuss this with their customer service person as they can tell you what might cause this and what solution will be effective.

Most likely it is being caused by the type of "machine" you have and the process the water softener goes through to give you "soft" water so they are the experts and should be able to help you as I doubt you can tell from the paper work what could be causing this.

It really sounds like "salt" scum to me.

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September 24, 20180 found this helpful

Hello !

wood coal, flint and lava stones are supposed to help keep water clean.

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