SpaBoss pH Minus

One capful holds approximately 1 oz.

Test water daily for pH and bromine / chlorine.  When pH reading is above 8.0, add 2 ounces of pH Minus per 250 gallons of water.  If pH reading is 7.8 - 8.0, add 1 ounce of pH minus per 250 gallons directly to the spa / hot tub.  Let water circulate for 1 hour and test again.

Active Ingredient: Sodium Bisulphate - 96%

Free shipping is available to the Continental United States for orders over $99. If order happens to be backordered (which is very rare), it will ship within 5-10 business days. If you need something shipped faster, please contact us and we will do our best to accommodate.

All orders are charged at the time of order. Next-day/two-day shipping, orders must be received prior to 3:00pm CST (and will not be processed on Saturdays, Sundays or Holidays.)

*No Returns Available For Cover Lifters, Covers, or Electronics*

Orders must be returned unused and in original packaging, if applicable, within 30 days of receipt. At time of receipt of returned order, you will receive a refund less the restocking fee.

Restocking Policy: Selecting replacement parts and filters can be difficult, so you will never be charged a re-stocking fee if you call or email to ensure you are placing the correct order. Customers are responsible for paying the shipping costs on all parts that are returned due to incorrect ordering. A 20% restocking fee will apply on a case-by-case basis.

Please fill out the return order form on the back of your original packing slip when returning parts. Parts should be returned to:

Master Spa Parts, Inc.
2140 W Wisconsin Avenue
Appleton WI 54914

Free shipping is not available on International Shipments (including AK and HI). Customers shipping outside the continental United States are responsible for any additional duties and taxes depending on shipment location and cost of goods.