Question: After every heavy rain, I find dozens of fat earthworms drowned in my pool. If I don’t vacuum them out immediately, some stick to the bottom and leave a stain that won’t brush out. How can I ...

Question: In December 2002, we bought a home with an in-ground pool. We are now noticing brown spots on the bottom of the pool. These brown spots appear to be only on the shallow end the pool. I asked ...

The first step is to identify the problem. Stains in a swimming pool can be caused by metals in the water or by algae, and the best clue to the source of the problem is the colour of the stain. Almost ...