That ugly scum line that builds up around the water level on spa is nothing less than disgusting in which I am sure we all agree. What is it from you ask?
The scum line is from body oils and excessive use of an anti foam product to remove unwanted bubbles that look more like suds [...]

Silicone sealant is used in a wide variety of ways and has a wide variety of types. First be sure you use the proper type for the job you are doing. In the case of repairing a seal around a jet in a hot tub, be sure the silicone is rated for use in water [...]

Chemical adjustment is best done with the water heated so the chemicals added dissolve quickly and mix easier. Once the water is heated up to approximately 100 degrees F., its time to make adjustments one at a time and in a specific order.
When adding chemicals, add a little at a time. You can always add [...]

Some leaks may occur around fittings in a hot tub as

Some times water leaking from the seal in the pump is hard to find. It is usually identified by a drip directly under the pump housing. If that fails and it seems water is leaking from somewhere else, take a very bright flashlight and shine it on the back side of the pump housing where [...]