This Penetrating Spa Cleanser is 100% guaranteed to clean away chemical residues which have built up deep inside your spa plumbing and pump. Simply pour into your existing spa water and allow to circulate for 3-5 days. It is highly recommended if you purchased a used spa or hot tub. This 16 oz bottle cleans up to 500 gallon spa. Two bottles are recommended if your spa is over 5 years old.
Using the Penetrating Spa Cleanser before starting with the Water Treatment and Conditioner is an important step in being successful with the Natural Hot Tub Company products.