How to remove tough water marks ???

[Twaldo]

How to remove tougher water marks without damaging the tank ?

 

[Twaldo]

Bump.

 

[Lateral72]

Glass or Acrylic?

 

[Twaldo]

Glass

 

[bob]

razorblades have worked inside and out for me. You could also try a vinegar & water solution

 

[Twaldo]

Okay thank you

 

[mfinn]

straight vinegar , no need to dilute it and a nylon, non scratch pad.

 

[Dave3112]

straight vinegar , no need to dilute it and a nylon, non scratch pad.

+1 And a little elbow grease!