Hot Tub School

It’s easier to relax in your hot tub when you know what you’re doing. Here’s how to know what you’re doing.

Water Balance

Understanding Water Balance

There are two basic elements to pool chemistry: water balance and sanitization.

pH Overview

pH Overview

Ideal pH Range for Hot Tubs: 7.2 – 7.6

Total Alkalinity

Total Alkalinity

Ideal Total Alkalinity Range for Hot Tubs: 80-120

Total Hardness

Calcium Hardness

Ideal Calcium Hardness Range: 150-250

Langelier Saturation Index

Langelier Saturation Index

Test your water and fill in the necessary measurements for your hot tub or hot tub water.

Hot Tub Volume Calculator

Hot Tub Volume Calculator

Fill out the form to calculate your hot tub volume in gallons.

Hot Tub Equipment

Hot Tub Equipment

Get to know the hot tub equipment and how it operates.

Find a Dealer

FROG products can be purchased from local dealers in your area. Over the past 20 years, we have built a strong nation-wide network of dealers that carry our products and can service your needs. For this reason we do not sell our products on-line or directly to the pool or spa owner.