Cover it, or turn off the computer.
Hot tub covers can have long lives if they are cared for properly. Hot tub covers are mostly affected by dirt and sunlight so keep it clean and perhaps put a tarp over it if the hot tub is in direct sunlight.
There could be any number of reasons, ranging from simple evaporation to slow leak.
The amount of water that evaporates from a hot tub varies based on factors such as temperature, humidity, wind speed, and surface area. On average, a hot tub can lose about 1 to 2 inches of water per week due to evaporation. Higher temperatures and lower humidity levels can increase this rate significantly. To minimize evaporation, using a hot tub cover when not in use is recommended.
To prevent dehydration while enjoying a hot tub, make sure to drink plenty of water before and after soaking in the hot water. Avoid alcohol and caffeine, as they can contribute to dehydration. Limit your time in the hot tub to prevent excessive sweating and loss of fluids.
To keep frogs out of a hot tub, you can install a cover securely when the hot tub is not in use. You can also remove any attractants such as insects or algae from the area around the hot tub. Another option is to create barriers such as fences or nets to prevent frogs from entering the hot tub.
Generally most hot tub heaters reach a maximum of 104 degrees Fahrenheit. Hot tub heaters are regulated to prevent excessive heat from harming our bodies. The following is a website that has a lot of detail about hot tub heaters. http://www.ehow.com/about_5031765_temperature-should-hot-tub.html
Not so much the hot tub more like the people in it, the PH levels are for 2 reasons 1 to stop bacteria growing in the hot tub (which is bad for the user not so much the tub) 2 to stop the liquid in the hot tub melting the occupant of the hot tub (melting might be a little strong but serious irritation and sickness can occur if your tub is not properly maintained) Side note: if the PH is way off it could adversely affect parts of the hot tub, but if it's that extreme you will be in for a nasty time if you get in it.
Hot tubs can contribute to dehydration because the hot water can cause you to sweat more. To prevent dehydration while using a hot tub, it is important to drink plenty of water before and after soaking, limit your time in the hot tub, and avoid alcohol and caffeine, which can further dehydrate you.
When it's cold outside, the air temperature causes the water in the hot tub to evaporate more quickly. As the water evaporates, the water level drops faster. This is because cold air is less humid than warm air, leading to increased evaporation.
THE HOT TUB IS TO RELAX
You use a hot tub cover after the hot tub has cooled off. Using it while your hot tub is still warm can cause your cover to break.
Silver can tarnish in a hot tub due to exposure to chemicals such as chlorine or sulfur that react with the metal. The high temperatures and presence of these chemicals can cause a chemical reaction on the surface of the silver, leading to tarnishing. Regular cleaning and maintenance can help prevent tarnishing in a hot tub.