Thanks a lot all for the responses!! I don't have a heater and there really isn't any metal (except skimmer screws and the pump) that the water...

I know this is a little late on the response but I let my calcium build up over the winter. I used a pumice stone which did not damage my tile. I...

Thanks, Richard. I'm certainly not a chemist but I agree that it doesn't seem right. I will probably dig a little deeper into his reasoning, based on...

Most likely stains from leaves and such.

Try rubbing it with a chlorine puck. Else, over time, with your chlorine levels kept in range, they will...

Sounds like scale to me. There are many tile cleaners. How effective they are, I don't know. My coworker says she spent hours and hours trying to...

Hey, did you ever get a solution to this problem? I have a similar one, altho my pool's hardness is 500, so not quite as bad. I can't seem to find...

The pool company tested my water and told me my TH was 180ppm. They said to add 8lb hardness-raiser to my 26,000 gal pool (I'm not sure exactly what...

I have a 50mt³ poliester in ground pool. The water here you would not believe. If it was any harder it would'nt be wet. We get drinking water in...

You cannot pressurewash the deposits off with just water. I use an injection system where I blast the deposit off. hopefully this will work.

no problems so far with my DE unit.

White scale is normally calcium carbonate for the most part.

You could try adjusting the alkalinity down to 0 mg/l. This is usually all that is...

You could consider water blasting it. However, the pressure required may damage the grout too.

we use 3 inch chlorine pucks

Could be the start of algae. Brush the walls and see if it is still slippery.

Calcium Crystals have formed on the surface of my plaster pool. It feels like sand paper. How do I get rid of them?

Have the water tested for...