Low calcium

[robertopod]

I have an Aquarite and calcium of 80 in a vinyl inground. Is that a problem? They recommend 200-400. Thanks

[PatL34]

Welcome to the forum.

It's 200 - 400ppm for a gunite pool. 120 ppm is Ok for a vinyl pool. You are Ok. Whoever recommended you did not know you had a vinyl pool.

Hope this helps.

Pat

[KurtV]

Do you have a heater?

[robertopod]

Yes a Heat Siphon heat pump.

[KurtV]

Then you may want to run your calcium hardness a bit higher than 80 ppm. Even though you generally don't need calcium in a vinyl lined pool, it may help protect the heater.

Ben's tip on calcium in vinyl pools alludes to this: http://www.poolsolutions.com/tips/tip03.html

[robertopod]

I knew it wouldn't hurt the pool.(found that info here) I am just worried about the SWG. Thank you for the help and welcome!

Welcome to the forum.

It's 200 - 400ppm for a gunite pool. 120 ppm is Ok for a vinyl pool. You are Ok. Whoever recommended you did not know you had a vinyl pool.

Hope this helps.

Pat

[Poolsean]

Low calcium will not harm a salt chlorine generator. However, low calcium contributes to a corrosive tendency of your water. You should also provide your total alkalinity and pH levels...and your water temperature.

Corrosive tendencies will lead to erosion/corrosion of anything metallic in contact with the water...think ladders, light rings, heat exhangers (unless it's titanium), and handrails.