Add 2 cups (400 grams) of granulated chlorine (not stabilised) or 3 tubs of 15L chlorine (as it's actually only 20% chlorine and the rest is water). The Right Amount of Chlorine Shock to Use in Your Pool *For liquid chlorine or sodium hypochlorite with 12.5% chlorine, add 10 ounces for a 10,000-gallon pool to raise free chlorine (FC) by 1 ppm. Bunnings stuff dissipates faster, used as shock treatment (chuck it in, chlorinates fast and for a shorter period) I have some calcium hypochlorite (pool shock) that says 49% available chlorine. Prerequisites: You need to have a FAS-DPD chlorine test; You also need to know your current CYA level, and then look up the corresponding FC shock level. Any pool shop brand is ⦠Two Methods: Shock Chlorination Or Chlorine Maintenance Residuals. I use a salt water chlorinator but when I get a load of dirt dumped in with rain and an algae bloom is looming (high combined chlorine) â I use this to 'shock' the pool â brings up the chlorine level faster than the SWG. Shocks or oxidizers chemically destroy organic contaminants, remove combined chlorine and help restore water clarity. While chlorine may be the go-to option for pools, however, bleach is the weapon of choice in the battle against germs inside the home. Chlorine has long been the most common chemical used to sanitize pools. Total Cl wasnât measured but it is high also. We all know that pools harbour all types of organic material. *For calcium hypochlorite or powder chlorine, 1 pound is ideal for every 10,000-gallon pool. You are far better off using liquid chlorine vs solid, just to avoid CYA buildup. Shock chlorination adds chlorine until the residual reaches 50 to 100 PPM. Chlorine containers will only be accepted if it is empty, blue, 15L and with a cap. So 378.5 x 2 = 757 mg But its only 49 percent strong. You can use the The Chlorine/CYA Chart at Pool School to find the correct FC shock level for your CYA level. Liquid chlorine and granular shock have the same active chemical that sanitizes your pool, what changes is the strength and the way you use it. 100 gallons = 378.5 liters. A highly oxidised, chlorine-free shock treatment for heated spas and spa pools that is fast acting and quickly restores water clarity and sparkle.Use on a weekly basis to ensure a clean, healthy spa. NON CHLORINE SHOCK TREATMENT for pools running on the AQUAFRESH⢠chlorine free system. ; It is best to use bleach or liquid chlorine when SLAMing. You also need to shock your pool with chlorine. Shock Chlorination. This is the second step of the BioGuard 3-Step Pool Care System . Bacteria, viruses, algae as well as other organic deposits from leaves, dust, dirt, body oils, fats, urine and other exudates all place a ⦠Granular shock is stabilized and comes in a solid form that dissolves in your pool. To figure for 2 ppm of TOTAL chlorine is simple. Liquid chlorine is less costly, unstabilized and comes in liquid form. Chlorine Exchange makes the swap over process quick and easy, simply take your empty chlorine container to an outlet and swap it for a new filled chlorine container. How much do I add to get 2 ppm of chlorine to a 100 gallon reservoir? You need a daily chlorine product, and shock is too quick acting, creates highs and lows, and tablet give a consistent chlorination level. Itâs potent, readily available, and trusted as a conventional cleaner for pools. This is recommended when you have a new storage tank or have work done on the well, or you find out the storage tank is contaminated with coliform bacteria. Remember 1mg/L = 1 ppm So 2 ppm would be 2 mg per liter of water. For the best results, broadcast Hy-Clor Spa Shock evenly around the spa surface. *such as perspiration, suntan lotions, hair sprays, body oils, urine, pet dander, and cosmetics. The difference is that The Pool shops sodium stuff is stabilized chlorine (it contains acid), where as the bunnings stuff is un-stabilized. Don Holmberg on May 20, 2020 at 9:20 am said: I have an approx 10000 gal fiberglass pool and my free Cl levels are between 7 and 10 ppm.