Every spa owner needs the proper chemicals and tools to maintain their spa.  First, you need a way to monitor your water chemistry so you know what chemicals to treat your water.  This is done with a test kit - the MySutro kit listed here gives you all the information you need to find this out.
Secondly, you need the proper chemicals to treat your pools.  The basic chemicals that you need are sanitizer, pH up, pH down, and alkalinity up.
Finally, you need some tools to help you clean and maintain your spa.  The floater listed here, for example is a great way to keep your bromine levels up without having to manually add the chemical periodically.

Sutro Spa Essentials

Chemicals & Maintenance

Sutro Basics 2 Way Test Kit

Test your pool water quickly and easily with this all in one test kit from Sutro. No need to read complicated manuals and figure out...

Test your pool water quickly and easily with this all in one test kit from...

SKU: 13TK01BL
In Stock
$12.99 $5.99

Chemicals & Maintenance

GAME 1800 Derby Dolphin Brominator

Holds 1" bromine tabs (not included) Adjustable flow rate For all size spas

Holds 1" bromine tabs (not included) Adjustable flow rate For all size spas

SKU: 1800_dolphin_small
In Stock
$13.99 $10.93

Chemicals & Maintenance

AquaChek 551236 7-Way 100 Count Pool Water Test Strips

7-Way Strips Measure:Free Chlorine, Total Chlorine, Bromine, Total Hardness, Total Alkalinity, pH and Cyanuric Acid Just dip and wait 15 seconds Includes a reusable color...

7-Way Strips Measure:Free Chlorine, Total Chlorine, Bromine, Total Hardness, Total Alkalinity, pH and Cyanuric Acid...

SKU: B0083SMU7C
In Stock
$9.90

Chemicals & Maintenance

Leisure Time 22337 Spa 56 Chlorinating Granules

Leisure Time 22337 Spa 56 Chlorinating Granules

Leisure Time 22337 Spa 56 Chlorinating Granules

SKU: B000NCW904
In Stock
$10.68

Chemicals & Maintenance

Leisure Time Brominating Tablets - 4 Lbs

Brominating Tablets By Leisure Time Leisure Time Brominating Tablets provide a concentrated source of active bromine that is ideal for hot tub sanitizing. These tablets...

Brominating Tablets By Leisure Time Leisure Time Brominating Tablets provide a concentrated source of active...

SKU: B000O5ZZ4W
In Stock
$37.78

Chemicals & Maintenance

Leisure Time 22339 Spa Up - 2 Lbs

Always maintain the pH of your spa water between 7.2-7.8. A low pH reading (below 7.2) can cause equipment corrosion or scale formation. Compatible with...

Always maintain the pH of your spa water between 7.2-7.8. A low pH reading (below...

SKU: B000V89QRY
In Stock
$11.85

Chemicals & Maintenance

Leisure Time Spa Down - 2Lbs

Always maintain the pH of your spa water between 7.2-7.8. A high pH (above 7.8) can cause scaling and/or cloudy or colored water. Compatible with...

Always maintain the pH of your spa water between 7.2-7.8. A high pH (above 7.8)...

SKU: B000V8BUBE
In Stock
$9.88