How to Clean Lime Buildup on Hot Tubs

Clean lime buildup on hot tubs with vinegar.

Lime buildup leaves dark gray or black deposits over the jets of your hot tub, which flake off and float around in your otherwise-clean hot tub. This greatly diminishes the relaxing feel of a soak in the hot tub, not to mention how uncomfortable it may make visitors feel. By cleaning the hot tub regularly with an inexpensive cleaning solution, you can eliminate the lime buildup.

Things You'll Need

• Dishwasher detergent tablets
• Vinegar

Instructions

1. Pour 2 cups of white vinegar into your hot tub and also drop 2 dishwasher detergent tablets into the hot tub.

2. Fill the tub above all of your hot tub jets, and turn the jets on high speed.

3. Allow the hot tub jets to run for 20 minutes. The vinegar and detergent mixture will create a non-sudsing cleaning agent that will break apart all of the lime buildup and also disinfect and clean the hot tub.

4. Drain the water from the hot tub, and refill with clean water, again making sure the fill line is above all jet line openings. Let the fresh water run through the hot tub jets on high speed for 10 minutes, then drain the tub.

Tips & Warnings

• Repeat monthly to keep lime buildup at a minimum.

References

• USU.edu: Making a House a Home
• Naturally Healthy Home Cleaning Tips: Vinegar and Baking Soda Cleaning Recipes