Any Salt and acrylic tub issues?

[Kidneydoc]

So I asked Master Spa about using a SWG and of course adding salt to the spa for this. Their response was, "We don’t recommend the use of salt systems in the tubs as it converts the salt to a form of chlorine that is not recommended by the manufacturer of the acrylic as it can have a negative affect on the spa shell over time."

Clearly the first part is nonsense (Chlorine is chlorine wherever it comes from). However, is there any issue with salt water at 3000 ppm (-ish) on the acrylic shell?

Thanks for any insight on this issue.

 

[jseyfert3]

However, is there any issue with salt water at 3000 ppm (-ish) on the acrylic shell?

No, acrylic is not affected by salt.

 

[Kidneydoc]

Thanks! The salt - acrylic interaction sounded like BS to me

 

[Methuselah]

The salt reduces the life of your heater, so if that's acceptable, when it's time to select a replacement titanium coated will render the longest service life.