How to Remove Black Gunk from Whirlpool Jets

How to Remove Black Gunk from Whirlpool Jets

Have you ever turned on the jets in your whirlpool bathtub only to be surprised by black "gunk" coming out of them? If so, you're not alone.

Behind the scenes on a whirlpool bath is a system of PVC pipe that delivers water from the pump to each of the jets. Despite innovations in draining the water from all the pipelines, a whirlpool bath can still hold up to two cups of water. The water retained in the system creates an environment conducive to growing “gunk” inside the pipelines.

Because of this, whirlpool tubs must be regularly flushed and sanitized. Unfortunately, homeowners rarely end up with the owner’s manual for their tub and have no idea about this until one day they get into their tub and suddenly, black gunk comes out of the jets. Regular maintenance will prevent this from happening and keep your bathtub nice and clean.

To clean your tub, follow these simple steps:

  1. Fill up the tub with hot water.
  2. Add as much automatic dishwasher cleaner as you would for a load of dishes.
  3. Add a cup of bleach.
  4. Run the jets in the tub for 10 minutes.
  5. Drain and refill tub with cold water.
  6. Run for another 5-10 minutes.

If the tub is already producing black gunk, this process may need to be repeated two or three times.

Depending on how often the tub is used, this cleaning routine should be done every 60 – 90 days. Even if you are not using the whirlpool system and just bathing, water is still getting into the piping through the jets.

It is also a good idea to clean the jets on a new tub before ever using the bath. Some residual saw dust or maybe even materials like dry wall dust could have gotten into the bath system during construction. Flushing and sanitizing the bath before ever using it will guarantee a relaxing whirlpool bath experience from the beginning.