how do I prevent mold from growing in my outdoor concrete fountain?

Answer 1

does the water get circulated?or is it just a still body of water? if it's not being circulated and the wildlife drink from it(birds,etc)you should just replace the water and freshen it with the hose at least every other day.

Answer 2

Concrete Fountain Molds

Answer 3

OK there are a lot of simple answers to this question, but since signs of mold on the foundation can be precursors to a real problem will give you a bunch of information along with the simple solution.

Step 1. pick a sunny dry day, and rent a pressure washer. Remove the existing mold completely with washer.

Step 2. let the surface dry completely.

Step 3. well this is a matter of choice. A simple water sealant compound could do the trick, but if moisture is working itself into the foundation through the capillary action of the cement you will get bubbles in this sealant in a matter of a couple of months.

My choice is a applying a lime plaster to the surface of the foundation. Not to hard to do, will prevent the mold from growing on the surface again, but will require maintenance every few years.

OK now to the complex answer, this site will provide you with all the information you could possibly want on the topic of mold, building and concerns.

http://www.moldinspector.com/concrete-slab-floor-mold.htm

Answer 4

If the fountain does not get a regular supply of fresh water there is a possibility that alge and slime mold will grow.

I empty mine weekly,wash it down with dishwashing liquid and a little Hydrogen peroxide
and refill. But I am in central Florida and our daily temps require extra maintenance.

You might try a bit of hydrogen peroxide in the water to prevent the mold. based on the size of your fountain, a table spooon of the chemical per gallon may be about right.

Experiment to find out what is best.
Now if I could only find a method to keep the racoons from crapping into my fountain Iwould truly be blessed.

Answer 5

First dump all the water out of your fountain and let it sit and dry out for at least 48hours. Make sure its good and dry. Then powerwash or scrub the fountain to make sure all existing mold/algea is off. Then pick up some cement Sealer they sell it at Lowe's. It seals the pores of the cement and the water and algea/mold runs over the cement instead of lodging it's self in the cement pores and growing. They use the same sealer for cement driveways, it will increase the lifespan of your fountain also. You will need to do it probaly every 3 years.

Answer 6

Add a small amount of bleach into the water. This will start to clean it up right away. For even better results clean the fountain first, again bleach will work. After you refill your fountain with water add the bleach. It should keep it clean for awhile since the fountain circulates the water.

Answer 7

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Answer 8

It's probably not mold.
Probably algae.
Either way, if you don't have any plants or fish in it just scrub it off and dump some bleach in it.
If you have living things in it go to a garden center that has pond supplies andbuy the appropriate product

Answer 9

Double glazing, but that won't help you! Try laying old towels along the window ledges to catch the wet - ad wipe off as often as you think about it. A dehumidifier might help - not sure on this one. To get rid of the yukking looking black stuff, an old toothbrush and neat bleach left for a few minutes will work.

Answer 10

Bleach kills mold. Use fairly strong solution of mixture of
bleach & water. You can see the evidence at once.