6. (foll by: to) related (to) or dependent (on). 7. (when: postpositive, often foll by to) having a subsidiary or minor relationship (with). 8. (General Physics) (esp of a beam of light or particles) arriving at or striking a surface: incident electrons.
Answers (1) hill. Personally, if you use salt water properly, it won't cause any damages to your sunglasses. But if you rinse your sunglasses in salt water for a long time, it may cause some damages to the lens coating of your sunglasses. Anyway, you needn't rinse your sunglasses in salt water.
Have your dealer test your water to ensure that your calcium level is below 150 ppm before using any of these products. If your water does cloud, the filter will remove the cloudiness, but you should clean the cartridge after the water clears. Once the spa clears, the spa will resume normal operation.