Use a hose to add and a syphom to remove.
The check valve between the spa and the pool is defective.
To use a foot spa massage machine, first fill it up to the maximum water level line with warm water. Plug the unit into an electrical outlet, choose which setting you want and place your feet in the foot spa.
To use a foot spa massage machine, first fill it up to the maximum water level line with warm water. Plug the unit into an electrical outlet, choose which setting you want and place your feet in the foot spa.
adjusting the pH of pool water Follow the link below
You can add powdered lime or wood ash, depending on how you're trying to adjust it.
The same as you would a fresh water spa.
No spa water is not pure there are other things added to the water
There is a screw on the top of the fill valve, but these are usually corroded. Most people just bend the rod holding the float to adjust the water level.
level 3
There should be valves to redirect the water to and from the spa. Ken
I would NOT do that unless I were certain that the spa was built and designed to handle the change. Salt water can do serious damage to components that were not designed to withstand it.
no. repair or adjust your water level valve.