Jacuzzi Hot tub leaking
A hot tub has many openings where water can leak. Each of the tub’s jets may develop a leak over time. The plumbing behind the spa’s shell may also leak. As you look for the source of water loss in your hot tub, be methodical in checking each component before moving on to the next. Keep in mind that you might have more than one leak, especially if the problem is with the jets. As one part fails, similar parts may do the same.
Turn off power to the hot tub. Open the equipment compartment. Use a flashlight to examine the spa’s pump. Feel the pump for dampness and look for wetness. If the pump’s seals are bad, it may be easier to replace the entire pump than to replace the seals.
Examine the fittings and pipes leading to the pump and the spa’s heater. Check the pressure switch as well. Feel for wetness at each joint. Even new spas may leak because the fittings may jostle loose during shipment. Tighten loose fittings by hand to stop leaks.
Follow each pipe to its jet looking for signs of leakage along the way.
Place a drop of dark food coloring in the water in front of a jet. Water seeks the path of least resistance, so watch to see where the food coloring goes. If it flows out a jet, you may have found your leak. Look for the colored water to leak out on the outside of the spa’s shell. Repeat for all the remaining jets.
Let the water set to see how far it drops. If it stops at a jet, you have found the leak.
Mark the water level on the inside of the spa with a grease pencil or crayon. Turn the spa on and let it run for 24 hours. Turn it off and mark the new water level. Add enough water to fill the hot tub to the original water mark. Let the pool set in the off position for 24 hours. Mark how much the water level falls when the spa is off. If the water drops equally with the spa running and not, there is a crack in the spa’s shell. Rapid loss with the pump running indicates a leak after the water leaves the pump. More loss with the pump off indicates that the leak is in the water line before the pump.
Things You Will Need
- Dark food coloring
- Grease pencil or crayon
- You may need to pull out urethane foam insulation from around the pipes to expose them. It’s not uncommon for mice and other small animals to make their nests in the insulation.
- Products are available that you pour into the water to seal small leaks.