If you own a hot tub, then chances are you want to use it all year long. One of the most important things that you will need to know is how to keep a hot tub from freezing. A hot tub can cost a lot of money to purchase, but it is also one of the best investments that you can make for yourself and your family. Knowing how to keep a hot tub from freezing can help you enjoy your tub all year long.
How to keep a hot tub from freezing? You will first need to make sure that your spa’s equipment is working properly. You can prevent your hot tub from freezing by regularly winterizing it at the temperature that it is set at, or by draining it periodically and running the low flow pump on it to keep the water moving and prevent it from rapidly freezing. If you have any other pool equipment that is working in your hot tub, then you may need to drain those as well and add new winterized equipment to your pool. Once you have drained the spa of all water and replaced the heater, the next thing that you need to do is to add a layer of chemical insulation around the entire system.
This might seem like overkill, but you would be surprised at how much protection you actually need. A service engineer will come to your house and inspect your entire system to determine what needs to be done. He may recommend that you install a heat distribution system to keep your water at the proper working temperature and may suggest that you run some lower flow pumps to keep it moving. The service engineer will also tell you what sort of chemical insulation that you need in order to protect your spa from overheating.
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When it comes to the actual heater, your engineer will want to know where your valves are, how close they are to the pool and whether they are open or closed. He will also look at the connection points to your control panel and determine if they are open or shut. Is there an overload of supply coming into your system? If so, will your system’s manual be adequate to get the system running at full capacity during the winter months? Are you monitoring the pressure of the incoming water? If not, then you need to install additional valves or check the pressure of the supply being delivered to your system.
The thermostat is the key to keeping a hot tub from freezing over. A service engineer can check your system to see what the ideal operating temperature should be. After that he can recommend a heater that will keep your water at that temperature. You don’t want the water to freeze. You want it to stay comfortable. A good service engineer can help you select a high quality heating system that will keep your water from freezing and will keep it at the right temperature.
A low level heating unit is one of the most effective ways to keep a hot tub from freezing over. If your system is supplying heat to the spa, then it is likely keeping it at the right temperature. If the pipes supplying the heating system are cold, then you need to add a heating element to them. Keep in mind that it is a good idea to add an air blower as well. Air is much less dense than the heated air and can move much more quickly through pipes than heated air.
It is very important to have the proper salt content when you want to keep a hot tub from frozen over. Too little salt and the water will become too concentrated. You don’t want the spa water to be lukewarm because that would ruin the effect. Also, too much salt can cause the pH levels to decrease, which can result in a mushy and fuzzy feeling. Salt levels should be between one and two percent.
It is also important to keep the temperature constant and not raise the temperature of the water. As the water freezes, it expands. The expansion will cause the bottom of the tub to warm up faster than the rest of it. This will cause the temperature to decrease and the water may freeze again. If the tub is attached to a generator, then the speed at which the water is defrosted will be less and you will keep the temperature constant.