scum ring

[jgirvine]

We have drained our tub for a water change, and now see a scum ring we did not even know was there (white D1 spa).  What should I clean it with?  I assume normal 409 type products would be a no no???

[Vinny]

Some people use the Mr Clean Magic Eraser and have good results (just use a brand new one) and I've also heard of Windex being used (my dealer suggested this). But Bill Stevenson has suggested and I do use baking soda. It works great!

[Spiderman]

Windex works well on my Hot Spring, but check your manufacturers recommendations