Obviously using a phosphate-based sequestering agent in conjunction with a phosphate remover is counterproductive. Many contain phosphoric acid for stain protection, even though the label or SDS sheet will not always say so. The use of some sequestering agents or stain/metal control products is common. Maintaining a higher alkalinity will help balance and keep your pH from fluctuating and stay away from the constant seesaw of high pH and low alkalinity and vice versa. The goal of diluting the acid while trying to adjust the pH and alkalinity of your water is to reduce the use of bicarb and acid. By doing this, you are raising the pH of the acid, which reduces its alkalinity-lowering impact. If you pour both chemicals in the same location, the acid can destroy alkalinity and defeat your chemical goal.Īnother practice that is often overlooked is diluting muriatic acid before adding it to the water. Bicarb raises alkalinity and pH, while acid drives these readings down. Acid and sodium bicarbonate (or bicarb) accomplish opposite goals. Next, when adjusting alkalinity with sodium bicarbonate, always do this before adjusting the pH with acid. Cal hypo also comes in a tablet form for erosion feeders, so you must be careful never to mix cal hypo tablets and trichlor tablets with their respective feeders. Never mix trichlor tablets and any concentration of cal hypo chlorine or bleach, as this will create a dangerous reaction. A common problem involves the use of an inline chlorinator and/or a floater that stores trichlor tablets. The combination could produce chlorine gas, a dangerous byproduct that irritates mucous membranes, causes breathing difficulty and irritates the skin. For example, acid should never be poured on top of chlorine. Secondly, always add chemicals at different locations in the pool to avoid the risk of chemical conflict or harmful reactions. The second is to circulate the water to ensure proper mixing and dilution. The first is to operate the pump, unless instructed otherwise on the packaging.
When adding chemicals to any pool, technicians should follow two crucial steps. Let’s explore some possible candidates for reconsideration.
For now, it is up to pool professionals to seek the information necessary to determine these risks. But interactive risks are not considered. The new language accounts for the fact that professionals continually manage the same body of water with the regular addition of chemicals, as well as the fact that these chemicals can have a cumulative toxicology impact. Last September, NSF released an addendum to standard 50 to specifically address recreational water.
But if you combine certain chemicals, the byproduct reactions become your professional responsibility. The EPA, NSF, and current labeling laws do not mandate disclosure of interactive risk with other known additives in pool water. It is highly likely that, without warning labels or proper education, professionals are creating combinations that are unsafe, harmful, or at a minimum contradictive. There are some potentially hazardous chemical combinations you might not be aware of.
In the lower percentages (around 15-20%) dichlor is effective as a “shock and swim” product that allows you to swim 15 minutes after using – always be sure to read label.Do we truly understand the interactive risk and contradictions we might be creating for our customers to swim in? If you depend on product labeling, SDS sheets, EPA registration or NSF listings for this information, think again. When to use dichlor for shock and swim?Īs long as your stabilizer isn’t excessively high, dichlor can still be used in a pool that has an established level of stabilizer. Cal Hypo is white/gray in color, has a slight chlorine odor, and a a pH of 10.4-10.8 77 ☏ (25 ☌). What's the difference between Cal hypo and dichlor shock?ĭepending on the calcium hardness and total dissolved solid levels in the water, adding Cal Hypo can cause some turbidity and clouding to the water. When TriChlor or DiChlor is used to disinfect a swimming pool, the chlorine will get “used up” and the cyanuric acid will “build up”.
Technical name is Sodium Dichloro-S-Triazinetrione Di-Chlor has 55% free and available chlorine to fight algae in your pool The Di-Chlor Shock we sell is 99% Sodium Dichlor, which means 54.8% free chlorine Di-Chlor also contains Cyanuric Acid (CYA) which acts like sunscreen for your chlorine What's the difference between a dichlor and a trichlor?ĭiChlor is the cyanuric acid molecule with two chlorine (thus the name “Di”Chlor) atoms and one sodium atom. › Difference between dichlor and trichlorįrequently Asked Questions What's the difference between di chlor and chlorine shock?.› Sodium dichlor vs calcium hypochlorite.