Shocking a hot tub requires about 2 ounces (4 tablespoons)of chlorine for every 500 gallons of water.
When a hot tub has been refilled, it is important to give the water a high dose of sanitiser. This can be done by adding 60g of chlorine granules per 1,500 litres of water to start the sanitation process and allow the level to drop to 3-5mg/l before using the hot tub.
for every 200 gallons in hot tub capacity, this means a 220-gallon tub should get about 1.1 oz. of granules, and a 400-gallon one should get 2 oz. As a rough guide, you might expect a couple of tablespoons per dose.
SpaGuard Enhanced Shock: Add 3 tablespoons per 500 gallons. Chlorinating Concentrate: Add 1 tsp. per 100 gallons. After shocking, do not use the spa until the chlorine residual drops to 5 ppm or lower.
For every 500 gallons of water, you need to add 4 tablespoons (or 2 ounces) of chlorine. However, we advise waiting for the chlorine levels to come down to 3 to 5 ppm before using the hot tub.
If theres too much chlorine it will vaporise and form gas that floats just above the surface of the water. If this vapor is inhaled it can inflame airways and exacerbate certain breathing conditions. Read more What Temperature Should My Spa Pool be at and Why?
How Many Chlorine Tablets? For smaller hot tubs we recommend 1-3 tablets and for larger hot tubs 3-5 tablets. Unfortunately this question doesn't have one simple answer and it depends on lots of factors like water flow, usage and hot tub size. Test your water regulary after start-up and see how the levels are sitting.
Chemicals in your hot tub water can be a delicate balance. So it's crucial to maintain the levels of pH, Alkalinity, and Chlorine or Bromine, also known as sanitizers. You should wait 12 hours before entering the hot tub when you've added either chlorine or bromine to allow it to take effect properly.
Is Spa Shock the same as Chlorine? Sodium dichlor shock is a form of chlorine and can act as both sanitiser and shock treatment. If you're using a chlorine-free shock product like MPS (potassium peroxy-monosulphate), then this will not have any chlorine in it.
Shock is chlorine, in a high dose, meant to shock your pool and raise the chlorine level quickly. Chlorine tabs (placed in a chlorinator, floater, or skimmer basket) maintain a chlorine residual in the water. You do need to use both tabs and shock.
In a clean, freshly filled 500 gallon wading pool, add a quarter cup of unscented household liquid chlorine bleach to the water. Then, at the end of each day, test the water and add an additional 1/8 to 1/4 cup, depending on the reading.
Well then here is the good news, you DO NOT have to use chlorine in your hot tub, there are alternatives (to be discussed later). Chlorine most certainly gets a bad rep. This wonderful chemical is the most used disinfectant in the world, it keeps our drinking water clean and keeps hot tubs safe!
For a 300 gallon spa, 0.7 oz of Chlorine Granules shaken over the water surface, will raise the chlorine level up to about 10 ppm. This should be done with a balanced pH (in the low range of 7.2-7.4), and with the circulation pump running on high to help distribute the shock quickly.
The chemicals you will need to start your hot tub include a pH increaser, pH decreaser, calcium hardness, a metal removal (if using water from rainwater tanks or bore) and a sanitiser.
A floater is really the worst way to take care of sanitizing your tub—about the most “dinosaur” method still used. It's difficult to regulate the amount of sanitizer being dissolved into the body of water. Then, it starts to seek out what it wants to “eat” after bacteria is gone: pH, tub shell, and more.
Chlorine – The most popular hot tub sanitiser, chlorine is fast acting and effective at killing bacteria. Our chlorine hot tub maintenance guide explains more about how chlorine works. Bromine – Ideal for those with sensitive skin, bromine reacts slower than chlorine and is effective at killing bacteria.
Regular hot tub shocking is inevitable to keep your water clean and safe for use. Dead skin and other elements like hair may end up dropping in the hot tub, leaving the tub in a mess. It is essential to shock the hot tub frequently – at least once every week.
In general, 2 teaspoons of chlorine per 200 gallons diluted in water and poured into a circulating tub will generally help raise chlorine levels quite quickly without overdoing it. You should test your chlorine levels every few days and adjust as needed.
Floating pool dispensers can be used in aboveground and inground pools, but make sure your pool manufacturer says it's safe to use one. The chlorine floater must be removed from the water when people are in the pool.
Place one tablet in the skimmer basket per 45.450 litres (10,000 gallons) and adjust tablet numbers as necessary to take account of your water flow to achieve 1 - 3 mg/I (ppm) relatively consistently.
However, chlorine, when used in excess, can alter the pH level of your hot tub. Chlorine can lower the pH level in hot tubs. It reacts with water to form an acidic substance, hypochlorous acid. This hypochlorous acid is the active compound that kills bacteria and germs in hot tubs.
*A hot tub can be left without power up to 3 days without risk of freezing, IF you follow these tips: 1. Keep hot tub cover closed and locked in place.
Using baking soda will not actually lower your pool's chlorine level. If your ph is way too low it may. Prevent corrosion and damage to pool equipment; To raise your ph levels, it can be as simple as adding seven to nine pounds of baking soda to your pool water.
Calculate how much chlorine (sodium dichlor) you need. The goal of shocking is to temporarily increase the free chlorine level to 10 ppm. Shocking a hot tub requires about 2 ounces (4 tablespoons)of chlorine for every 500 gallons of water.