Toilets, Sinks, Showers, Tubs and Disposals - Greyish stains in Toilet bowl

I bought my house in June and the toilets always had a dark greyish stain/streaks inside the bowl that was able to be wiped out but kept retuning. I figure it is because the toilets are as old as the house (26 years) and left it at that. Well, I have had one bathroom re-done with new fixtures, toilet, tub etc and the greyish stains/streaks show up in the new toilet bowl after 2-3 days and are again, easily wiped out with a brush. I contacted my water company and they took water samples and said everything is normal. Does anyone have an idea as to what this residue is? Should I put a whole house filter on at the main to cathc sediment?


Thanks

Site :cool:

"Normal" is in the eyes of the beholder. Ask your water supplier if your water is "hard water". Hard water contains calcium which is said to be healthier as the body uses it for some processes. Removal of the calcium increases corrosivity. Hard water will cause white or grayish stains in fixtures. A softener will solve the problem. Good luck and post back.

Thanks Maj,

I called the water company and they told me my water is medium but the greyish stains are calcium and not to worry.

Thanks again

Site

But calciun IS a worry.

Calcium in you water indicates a 'hard' water but also water that is potentially overly acidic.

Acids dissolve bases (calcium) and if your water is not overtly 'hard' can indicate a problem with high acid levels in you water supply and create health and plumbing problems from too much acid.

What you need to do is to contact an local university or health organization who can test your water independently and who are not allied with any type of sales programs to sell you specific treatment plans....

If you are interested in the removal of these hard water stains from the porcelain I would recommend that you use a "Pumice Scouring Stick". Pumice stones work when the strongest chemicals quit. It will not damage or mark the porcelain surface.