At Pentair, we believe the health of … The volume of my pool/spa is * gallons. Required Data Entry The volume of water is (1 to 9,999,999 gallons) gallons. My pool/spa uses: Liquid Chlorine (Sodium Hypochlorite) Calcium Hypochlorite (granular or PPG Accu-Tabs) Dichlor (granular) Trichlor (tablets, pucks or sticks) I need to add this much to correct my pool/spa's FAC level: These calculators are provided as a baseline comparison, your results may vary. Calculator. Works whether you need 10 or 10000ppm. Match color in cell with a sanitizer color standard. My current FAC reading is * PPM. How to Raise Alkalinity in a Hot Tub Before you begin to adjust the total alkalinity in the hot tub, be sure you know how large your hot tub is (gallons) and what your target range is. Maintenance Chemicals. *MN only. After calculating the pool volume, use the other pool calculators to help balance the other pool chemicals. One way is to add Sodium Thiosulfate to neutralize the excess chlorine. Add 5 drops OTO. Pool Calculator. Calculator You'll need to know your Combined Chlorine reading in parts per million (PPM) before you can use the Shock Calculator. Dilute chlorine, hydrogen peroxide, quat, peracetic acid and iodine sanitizers accurately with this easy to use calculator. Test your Free Available Chlorine/Bromine. Just enter some basic information about your pool or spa, and then let Professor Goggles do the rest. Cap and invert to mix. Rinse and fill chlorine/bromine (Cl/Br) cell to mark with water to be tested. Chlorine. If you are unsure of how big your hot tub is, our Spa Volume Calculator can help. ... calculate the volume of water in your pool using our Pool Water Volume Calculator. You should keep your pool or spa Free Available Chlorine (FAC) level between 2.0 & 10.0 parts per million (PPM). You ideally want to be in the middle of the range between 80-120 ppm. See dosage chart on side of your preferred hth® sanitizer. Orenda’s Pool Dosing Calculator Instructions. PPM and % are decimal based so the calculator is designed for metric units. 20g Stabilised Chlorine Tablets. Get answers to questions like “how much liquid chlorine to add to pool?” or “how much muriatic acid to add to pool?” The Turnover Time, Flow Rate, and Filter Size calculators can help select adequate equipment and troubleshoot pool water circulation … Pentair delivers smart, sustainable solutions that empower our customers to make the most of life's essential resource. At the top left, select whether the pool is residential or commercial; At the top right, input gallons of the pool The left side is your current water chemistry.Test your water and adjust each item with the +/- buttons on the sides, or by tapping the number and typing manually. We list American equivalents so you can convert. Simplify pool and spa care with our online water analysis and volume calculator. Stabilised Chlorine Granules. Consult your local codes as Chlorine limits vary state by state. We recommend shocking with either Calcium Hypochlorite (un-stabalized granular only, not tablets) or with Liquid Chlorine (Sodium Hypochlorite). Record as parts per million (ppm) total chlorine or total bromine. Lower (Neutralize) Chlorine Level: Sometimes it becomes necessary to quickly reduce the level of chlorine in your water source, pool or spa, though time will do it for you. Spa & Hot Tub.