How fast does pool shock work

Make sure the levels have returned to normal before you allow anyone in. Step 6. Run the filtration system.

So be sure to run your pool filter for at least 24 hours. What is pool shock? What are chloramines, you ask? So when you shock your pool, you're adding enough chlorine to destroy the chloramines. Make sense? Why you need to shock your pool.

There are basically three reasons to shock your pool:. When to shock your pool. When free chlorine levels drop below 3 ppm. When your free chlorine levels drops below 3 ppm, it's time to shock your pool. Before you first use your pool for the season. Who knows what might be lurking under there?

Before you cover it up for the winter. Get ahead of it by killing it before it grows! After extreme weather conditions. After heavy pool use. Get rid of that leftover sweat, makeup and who knows what else before it clouds up your water.

At the first sight of algae. But having your own backyard pool can be motivating as well! They are nice, but a bit noisy, and may be expensive to heat in the winter, if you live in a cold climate. I added 7 lbs of powder shock to my really dark green pool! I jumped in vacuumed and brushed the walls and floor. I sure hope this helps.

When do I add pH or Alka.. Also should I use algicide right after shocking? Tina, chlorine is most effective at a lower pH level, so adjust the pH to be in the 7. If the pool is still green, check pH and alkalinity, and shock again, keep adding until the water turns blue. If there is a lot of leaf debris in the pool, remove most of it first, so the chlorine attacks the algae and is not wasted attacking leaves.

If you can drain and refill part of the pool quickly, that will help and also save money on shock, to dilute with fresh water.

Wait a few days after shocking. Clarifier can help clear the water, as can running the filter non-stop. You may need to replace the filter media after the water clears sand or cartridge , or use a Filter Cleaner. I use plenty of shock and keep my Ph exactly where it should be.

My test kits I have 2 different types to confirm results say my chlorine and Ph and alkalinity levels are perfect, but I continually get blooms of green algae growing on the vinyl surfaces of the pool. Just 2 days after shocking with over a lb. What gives??? For those that do, it can be helpful to use a weekly dose of algaecide, to help control blooms.

You also may consider replacing your filter media sand or cartridge , if not done in years, since algae can harbor within. Another thought is that you may have high levels of phosphates, which is a tasty food for algae. There are many phosphate remover chemicals, such as PhosFree, recommended if levels are over ppb. There also is a test strip for phosphates available.

How long after adding shock should you see a change? I vacuumed and scrubbed the pool. Would covering the pool help? For algae, double or triple the dose, depending on severity. Covering the pool can help. Using weekly algaecide treatment can also help and also having ppm of cyanuric acid in the water can help to keep the sun from depleting your daily chlorine level. A few days ago a was surprised with a lime green pool. Had water tested and was told I just needed to shock it with 2 lbs of shock.

Well I had already done that the previous day and nothing changed. So, I shocked it again with another 2 lbs. Elevated levels of free chlorine break up combined chlorine. Once your pool has been shocked, the water will be clean, clear, and safe for your family to enjoy.

Every couple of weeks during the swimming season. When your pool is outside of the recommended free chlorine levels of ppm. Shocking your pool will raise the chlorine level. What about a salt pool? When should you shock your pool? This gives your pool plenty of time during the night to free the chlorine and clean the water. In the morning, you should be able to enjoy your pool.

Opening Day — Before the kids jump in for the new season, you should clean and shock your pool. Over the winter or during times of disuse, algae have a tendency to grow.

Try again. How long does pool shock last? Granular chlorine products will lose only a small percentage of potency, when stored in a cool, dry and dark location.

When stored in a shed or garage however, the varying temperature and humidity levels will begin to solidify the contents, and within a few years, the 1 lb. For longer and safer storage, we recommend buying loose Cal Hypo in buckets, or Non-Chlorine shock.

Store in a dark and cool location, with a very tight lid to keep out moisture and contamination and to prevent off-gassing. For vinyl liner pools, undissolved granules resting directly on vinyl can bleach, fade or corrode soft vinyl surfaces. Pre-dissolving is accomplished by filling a clean 5-gal bucket full of pool water. Pour in 1 or 2 lbs. Stir with a yardstick or suitable paddle for several minutes to dissolve the granules.

Pour the solution around the edge of the pool, and as the bucket is almost empty stop, add more water to dissolve remaining granules in the bottom of the bucket. Vinyl pools can avoid pre-dissolving by using non-chlorine shock or lithium hypo shock.

Storing Pool Shock: Keep in a cool, dry area, separated from other pool chemicals, and out of reach of children. Shock is more safely stored if removed from the cardboard box and placed inside a clean bucket or storage bin with a tight fitting lid.

Do not store half-used bags of shock , which could spill, become contaminated, or take on moisture. Using Pool Shock: Cut bag carefully with scissors, and pour into the water while walking along the pool edge. Use a pool brush to distribute, and sweep or wash any spills into the pool. Vinyl liner pools should pre-dissolve granular shock, unless using quick dissolving Oxy Shock.

Pool shock is very reactive and when mixed with any substance other than water, it can release toxic gases, ignite or explode. Never place shock into a chlorinator or floater, or add to the skimmer, always add directly to the pool. Feel free to leave us a message and we will be in touch as soon as an agent is available. For urgent questions, you can reach us directly at Thank you for your business!

Swimming Pool Shock. Other Times to use Pool Shock. How Often to use Pool Shock. Chemicals Used as Pool Shock. Non-Chlorine Shock Pros:. Quick-release, fast acting, no residue, no odor pH balanced at near neutral pH Oxidizes organic contaminants to purify water Removes chloramines and ammonia No Pre-Dissolving needed, pour into pool Swim Immediately, no waiting period Won't bleach or fade vinyl liners or swim suits Won't add calcium or cyanuric acid to pool.

Non-Chlorine Shock Cons:. Not as effective for algae treatment Not as effective for bacteria treatment Chlorine shock treatments come in two types - Cal Hypo and Dichlor.

Chlorine Shock Pros:. Quick-release, fast acting Oxidizes organic contaminants to purify water Removes chloramines and ammonia Kills algae and bacteria easily to disinfect water Cheapest way to shock the pool Cal Hypo.