Pools Plus of Michigan

Frequently Asked Question

How to acid clean your spa's plumbing lines

IMPORTANT NOTE: This is for Hot Spring & Tiger River spas only

Materials needed: 1 gallon Muriatic Acid
Time: 5-6 hrs

1 - Remove all non-attached materials from the spa. This includes floating brominators, thermometers, toys, pillows, floor drain grate, and filters. Leave the spa filled with water.

2 - Pour the gallon of acid into the center of the spa.

3 - Over the next 4 hours, turn the jets on for ten minutes (with the Hot Spring spas, turn on the CLEAN cycle) once an hour. Each time you turn on the jets, turn the large handle diverter 90 degrees on four position spas or 180 degrees on two position spas. This will allow the acid solution to clean the jet lines. When the jets are off, the circulation lines and heater are being cleaned.

4 - After the 4 hours, turn off the power to the spa and drain the spa using the spa drains only. This will help flush out the calcium and build up from the spa plumbing lines.

5 - As the spa drains, using a water (garden) hose, rinse and wipe down the inside of the spa. Rinse thoroughly the shell, jets, moto-massage housing, and filter compartment.

6 - After the water has drained from the spa, reinstall the drain plugs and refill the spa.

7 - Once the spa is filled, turn the power back on and chemically balance the spa water.

This procedure should be done at least once a year for customers who are on well water, and as needed for those customers who use city water.

If you have any questions or concerns regarding this procedure, please ask prior to attempting this process.

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