Green Hard Stuff on Liner

by Amanda Heitzenrater
(Scio, Ohio)

We are not sure what is on the bottom of the pool. We had a lot of thunder storms and are not draining the pool so that we can move it next year. At first we thought that it was just plain algae on the very bottom and side of the pool (about 6 inches from the bottom). Then we realized that it is not just algae.

It is dark green and it is VERY hard. I have sprayed and tried to remove it with a hard Brussels brush. What can we do to get rid of it and not ruin the pool liner? It seems to be weakening the liner. Do you have any ideas on what we may be able to put on it to make it easier to remover or something else? Again it is very hard, the parts that I did scrum off seem to be hard like calcium build up but its green.




Hi Amanda. You mentioned you are not draining the pool to move it. I assume you meant you are draining the pool to move it, and, if so, it's a good time to replace the liner.

Your existing liner will shrink as soon as you drain it. It is never worth the frustration to install a used liner. Buy a new liner and start clean.

In the future you know what to watch for and you can jump on it early. You may need to brush the sides more or use a rag on them on a regular basis. Starting with a clean liner and keeping it clean would be much easier than cleaning up your existing liner.