It is a good idea to know about how old the spa is. This can be determined from information on the spa pack or electronics box, or possibly listed in the owner’s manual if transferred with the spa. Another method to determine a hot tub’s age is by serial number. These are often date coded so that the month and year of manufacture can be determined. The actual spa manufacturer also may be able to look up the serial number in their production database to help determine a spa’s age.
Typically a hot tub cover may need to be replaced after about 7 years. Pumps that are older than 3 years or so and are broken may be better off being exchanged rather than repaired. If the water quality was not maintained by the previous owner, then pump seals and other o-rings and gaskets in the system may wear, causing leaks.
At minimum, by filling and adding 2 capfuls of chlorine to attempt to kill bacteria in the lines are the best in super chlorinating the spa. The new product is also available at www.HotTubOutpost.com for cleaning the pipes and inside lines of a hot tub and is highly recommended in addition to chlorine to give the pipes and hoses a new beginning.
Replace the cartridge filter with a brand new one for your model. Determine if the cover is still good or needs to be replaced as well.
Used hot tubs can save money, but can also cost money to get them up to speed. If the electronics and pumps work, and the spa does not leak, it is a good start, but the spa will need to be cleaned inside and out and brought up to proper operating standards. Note that if water chemistry was not properly maintained, another thing that may go wrong is that the spa heats slowly or not at all. This could be the result of a calcified heater element with calcium buildup on the element inside the flow through heater. This makes it harder for the heater to do its job and ends up costing the owner more in electricity. The solution is to replace the heater.
There are 2 types of heaters. Those with the sensors on the outside of the tube and those with sensors on the inside of the tube (like recent model Balboa heaters). The ones with sensors on the inside usually are not hooked up to a pressure switch, whereas older models have a separate pressure switch that makes sure the heater can only work when safe.
Get all your hot tub spare parts from www.HotTubOutpost.com.