Yes, especially after you leave the cover off for a few days until you get a zero sanitizer reading.
It just depends on if the bees have another water source. Also it depends on what is in the water for the spa. Some bees are attracted to certain chemicals in water.
The same as you would a fresh water spa.
No spa water is not pure there are other things added to the water
The check valve between the spa and the pool is defective.
level the ground, they can be filled with water or sand to add weight
Please mow the lawn. I put lawn chairs on the patio.
There should be valves to redirect the water to and from the spa. Ken
I wouldn't.
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.
A lawn layer is sod that is put down on plain dirt to create a grassed area, or lawn.
When you have a spa used by the public you want to drain it often. The water in the spa should always be clear and clean.
if there is no drainage from the spa the best way is to put a submesible pump into it and pump the water to where ever you want it to go. submersible pumps can be hired from most tool hire places. If your spa is above ground you can create a siphon using an ordinary garden hose to drain it. For in ground spas you would probably have to have a hill close by, and make sure the water isn't going to drain down the hill into someone's back yard.