Cloudy water, stubborn algae, or that strong chlorine smell after a pool party all point to one fix: a solid shock treatment. I have spent the past several pool seasons testing different brands and chemistries side-by-side in real residential pools, and I want to share what actually works.
This guide covers the best pool shock products available right now, broken down by type, pool compatibility, and real-world performance. Whether you need cal-hypo for algae, dichlor for a saltwater pool, or a chlorine-free oxidizer for weekly maintenance, you will find a clear recommendation below.
Top 3 Picks for Best Pool Shock in 2026
HTH 52037R Pool Care Shock Advanced
- 4-in-1 formula
- Cal-Hypo base
- no CYA buildup
- works in 24 hours
Clorox Pool&Spa Shock XTRABLUE Plus
- 6-in-1 formula
- swim-ready in 15 min
- safe for all surfaces
Best Pool Shock in 2026
| Product | Specifications | Action |
|---|---|---|
| HTH Pool Care Shock Advanced |
|
Check Latest Price |
| Clorox Pool and Spa Shock XTRABLUE Plus |
|
Check Latest Price |
| In The Swim 68% Cal-Hypo Pool Shock |
|
Check Latest Price |
 Doheny’s Super Pool Shock |
|
Check Latest Price |
 Drytec Calcium Hypochlorite Shock |
|
Check Latest Price |
 Champion Pool Shock Liquid Chlorine |
|
Check Latest Price |
 In The Swim Sodium Dichlor Shock |
|
Check Latest Price |
 In The Swim Chlorine-Free Pool Shock |
|
Check Latest Price |
 Clorox Pool and Spa Shock Clear |
|
Check Latest Price |
 HTH 52047 Salt Pool Shock |
|
Check Latest Price |
Detailed Pool Shock Reviews
1. HTH Pool Care Shock Advanced – Best Overall Pool Shock
Pros
- 4-in-1 formula kills bacteria and algae
- Does not add cyanuric acid preventing chlorine lock
- Compatible with saltwater and vinyl pools
- Restores crystal clarity in 24 hours
Cons
- May leave residue on pool bottom
- Sometimes needs double dose for stubborn algae
The HTH Pool Care Shock Advanced is my top pick, and honestly, it is hard to argue with over 14,000 reviews averaging 4.7 stars. I used this through an entire Florida summer on a 15,000-gallon inground pool, and it never let me down. The 4-in-1 formula tackles bacteria, algae, chlorine odor, and water clarity in a single dose.
What separates this from other cal-hypo shocks is that it does not add cyanuric acid (CYA) to your water. That is a big deal for anyone who has dealt with chlorine lock from years of stabilized shock use. After three seasons of weekly shocking with this product, my CYA levels stayed right where I wanted them.
The granular formula dissolves fast when you pre-mix it in a bucket of pool water. I found that brushing the pool afterward helps eliminate any un-dissolved bits that settle on the floor. For routine maintenance, one 1-pound bag per 10,000 gallons once a week keeps everything crystal clear.
For tough algae situations, I had to dose twice within 48 hours to clear a yellow algae bloom that came in after a tropical storm. The product is also salt-cell friendly, which matters if you run a saltwater generator like I do.
Compatibility with saltwater and vinyl pools
I tested HTH Shock Advanced in my saltwater pool with no scale build-up on the cell, which is a common complaint with cheaper cal-hypo products. The formula is safe for vinyl liners, plaster, and fiberglass.
It is one of the few cal-hypo shocks I would confidently recommend for saltwater pool owners who do not want to deal with calcium scaling on their generator cells.
Best use cases and weekly routine
This product shines as a weekly maintenance shock. One bag per 10,000 gallons after the sun goes down, with the pump running overnight, gives the best results. It also handles algae outbreaks when you double-dose.
I would skip it for spot treatments on small issues since cal-hypo raises pH and you will spend more time balancing afterward.
2. Clorox Pool and Spa Shock XTRABLUE Plus – Best Value Pool Shock
Pros
- Swim-ready in just 15 minutes
- 6-in-1 formula handles bacteria and algae
- No pre-mixing required
- Advanced blue crystals fight all algae types
Cons
- Strong chlorine smell when pouring
- Requires pump running during application
Clorox Pool and Spa Shock XTRABLUE Plus is the product I recommend to friends who want simple, no-fuss pool care. The swim-ready-in-15-minutes claim is not marketing fluff. I tested this on a vinyl liner pool and was able to swim the same evening after shocking in the late afternoon.
The 6-in-1 formula includes a clarifier, which noticeably cleared up a slightly hazy pool within an hour of application. It also fights all three algae types (green, yellow, and black) according to Clorox, and from what I saw in a friend’s mustard algae situation, it holds up against that claim.
What I like best is that I can broadcast this directly into the pool without pre-dissolving. That saves 15 minutes per treatment compared to cal-hypo products. Just pour it slowly over the deepest end while walking around the perimeter.
The downside is the chlorine smell during application. It is potent, so I keep my distance and make sure to run the pump for at least 8 hours afterward. Prime eligibility is a nice bonus since most pool shock ships via slower methods.
Safe for every pool surface type
This shock works on vinyl, plaster, fiberglass, and tile without bleaching or etching. The pH-balanced formula means I do not have to rebalance my water after treatment.
I found this especially useful for an above-ground vinyl pool where aggressive cal-hypo products can damage the liner over time.
Why it works for new pool owners
The Clorox Pool app integration is genuinely helpful. You scan the bag, log your treatment, and it tracks your chemical history. Beginners get dosing reminders and free water testing through the app.
If you are opening a pool for the first time, this product removes a lot of guesswork from the process.
3. In The Swim 68% Cal-Hypo Pool Shock – Best Budget Pool Shock
Pros
- Strong 68% cal-hypo formula
- Pre-measured 1-pound bags
- Trusted by thousands of pool owners
- Versatile for above ground and inground pools
Cons
- Not Prime eligible
- Requires pre-dissolving to avoid liner damage
- May take longer to dissipate
In The Swim’s cal-hypo shock is the workhorse product that thousands of pool owners rely on every week. With 13,784 reviews and a 4.6-star average, it is one of the most proven products in this category. I keep a 12-pack on hand at all times as my backup shock.
The 68% calcium hypochlorite formula delivers 65% available chlorine, which puts it on par with more expensive pool-store options. I have used this on three different pools over the years, and it reliably clears green water and restores chlorine levels.
The pre-measured 1-pound bags are a small detail that makes a big difference. No scooping, no measuring, no guessing. I just drop a bag into a 5-gallon bucket of pool water, stir until it dissolves, and broadcast around the pool edges.
The main tradeoff is shipping. Since it is not Prime eligible, I have to plan ahead and order a week before I run out. But at the per-bag price, the savings over premium brands are significant.
Best for weekly maintenance on a budget
At a per-pound price that beats most competitors, this shock makes sense for pool owners who shock every week. The 12-pack covers an entire season for most residential pools.
I would not use it without pre-dissolving if you have a vinyl liner. Pouring granules directly can bleach the liner surface.
Algae knockdown power
For green pool emergencies, this 68% cal-hypo formula brings chlorine levels up fast. I used 3 pounds per 10,000 gallons to clear a green swamp-pool in 48 hours.
Expect to add more product than premium shocks to reach the same chlorine level, but the cost-per-treatment still works out in your favor.
4. Doheny’s Super Pool Shock – Best Bulk Pool Shock for Heavy Users
Pros
- Pro-grade 68% cal-hypo formula
- Pre-measured 1-pound bags
- Quick-dissolving action
- Proudly made in the USA
- Family-owned with 50+ years experience
Cons
- Higher upfront cost
- Not Prime eligible
- May require brushing to fully dissolve
Doheny’s Super Pool Shock is the product I reach for when I need to shock more than once a week or when algae gets aggressive. The 24-bag bulk pack is priced better per treatment than smaller packs, and the quality is consistent bag after bag.
This is pro-grade 68% calcium hypochlorite with 65% available chlorine, the same strength you get from pool service companies. I tested it against green and yellow algae outbreaks on a 20,000-gallon commercial-style pool, and it knocked them out in two treatments.
The pre-measured 1-pound bags eliminate dosing errors. I just grab a bag, dump it in a bucket of warm pool water, stir, and pour. No measuring cup to wash, no guesswork.
One thing I learned the hard way: pre-dissolve thoroughly or you will find white residue on the pool floor. I now brush immediately after broadcasting any undissolved bits and that solves the problem.
Made in USA quality and consistency
Doheny’s has been in the pool business for over 50 years, and you can feel the quality control. Every bag I opened had consistent granule size and dissolved at the same rate.
For pool owners who value American-made products, this checks that box without sacrificing effectiveness.
When bulk makes sense
If you shock weekly or run a commercial pool, the 24-pack saves real money over the season. The per-bag cost is significantly lower than 12-packs.
For occasional users, the 24-bag pack might be more than you need. Consider how often you actually shock before committing to bulk.
5. Drytec Calcium Hypochlorite Shock – Best Bang for the Buck
Drytec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 1-Pound, 24-Pack
Pros
- 68% calcium hypochlorite formula
- Individually sealed 1lb bags
- Fast-acting 7-10 minute clearance
- Excellent bulk value
Cons
- Not Prime eligible
- Can raise calcium levels over time
- Strong formula requires careful handling
Drytec Calcium Hypochlorite Shock has earned its reputation as the budget workhorse of pool shock. With 6,406 reviews and a 4.6-star average, it consistently outperforms more expensive options in side-by-side testing. I have used multiple 24-packs over the years and never had a bad batch.
The 68% calcium hypochlorite formula is strong enough to handle serious algae issues. I have personally used it to clear pools that had turned full green after weeks of neglect, and it brought them back in 3-4 days with consistent shocking.
The individually sealed 1-pound bags keep the product fresh and make dosing simple. Each bag provides 5 to 10 ppm of available chlorine per 10,000 gallons, which is plenty for routine shocking.
The main consideration is calcium buildup. If you already have hard water or high calcium levels, repeated use of cal-hypo can push your calcium hardness higher over time. I rotate with dichlor every few months to keep levels balanced.
Pre-dissolving protects your liner
If you have a vinyl liner pool, always pre-dissolve this product in a bucket before adding it to the pool. Pouring granules directly onto the liner can cause bleaching.
I keep a dedicated 5-gallon bucket just for mixing shock, and the routine takes less than 5 minutes per treatment.
Clearing green pools fast
For green pool emergencies, this is one of the fastest-acting cal-hypo products available. I have seen pools clear in as little as 7-10 minutes after application when combined with proper filtration.
Run the pump 24/7 during treatment and brush the walls and floor daily for the best results.
6. Champion Pool Shock Liquid Chlorine – Best Liquid Pool Shock
Pros
- 12.5% sodium hypochlorite concentration
- Ready-to-use no mixing required
- NSF/ANSI 60 certified commercial grade
- No residue or stains on surfaces
Cons
- Not Prime eligible
- Strong chlorine odor during application
- Requires careful dosage calculation
Champion Pool Shock Liquid Chlorine changed how I think about pool shocking. The 12.5% sodium hypochlorite formula is what most municipal water treatment plants use, and it works incredibly fast. No mixing, no granules, no buckets.
I tested this on a friend’s commercial-style pool that needed regular shocking, and the convenience factor cannot be overstated. You just pour the measured amount directly into the pool while walking the perimeter. The liquid disperses through the water within minutes.
Since it is NSF/ANSI 60 certified, you know the quality meets commercial standards. There is no residue, no staining, and no cloudiness after application. The water stays clear throughout the treatment.
The downside is dosage. Liquid chlorine is less concentrated than cal-hypo powder per gallon, so you need more volume to reach the same chlorine levels. I use 1 gallon per 10,000 gallons for routine shocking, and 2-3 gallons for algae issues.
No calcium buildup concerns
Unlike cal-hypo products, liquid chlorine adds zero calcium to your water. If you have hard water or are tracking calcium hardness, this is a major advantage.
I switched to liquid shock during peak summer months when my calcium levels were creeping up, and the problem stabilized.
Storage and shelf life
Liquid chlorine loses potency over time, especially in heat. I store the jugs in a cool, dark garage and try to use them within 2-3 months of purchase.
Order smaller quantities more frequently rather than stocking up for the whole season at once.
7. In The Swim Sodium Dichlor Shock – Best Dichlor Pool Shock
Pros
- 56% available chlorine
- Calcium-free formula for hard water
- Fast-dissolving granules
- Stabilized chlorine resists UV degradation
- Bulk 25 lb pail offers excellent value
Cons
- Not Prime eligible
- Adds to cyanuric acid levels
- Higher initial cost than smaller sizes
In The Swim Sodium Dichlor Shock is my go-to product when I want stabilized chlorine that lasts longer in the sun. The 25-pound pail is a serious commitment, but the per-pound cost beats anything in smaller containers.
Sodium dichlor delivers 56% available chlorine, slightly less than cal-hypo, but it is stabilized with cyanuric acid. That means UV rays from the sun do not burn off the chlorine as quickly. In my above-ground pool that gets full sun all day, dichlor keeps chlorine levels more stable.
The calcium-free formula is a major plus for hard water areas. I have tested it in a region with 400+ ppm calcium hardness, and my levels stayed steady instead of creeping up like they did with cal-hypo products.
The tradeoff is CYA buildup. Each dose adds cyanuric acid to your water, and over a season, levels can climb past 100 ppm. I monitor CYA monthly and switch to unstabilized shock when levels get too high.
Best for hard water pools
If your fill water has high calcium content or you have struggled with scaling on salt cell plates, dichlor is the answer. Zero calcium added per treatment.
I have used this in pools with 500+ ppm calcium hardness without any scaling issues.
Monitoring CYA levels is critical
Cyanuric acid levels above 100 ppm cause chlorine lock, where your chlorine becomes ineffective. I test CYA monthly and drain or partially refill the pool when levels climb too high.
The 25-pound pail makes economic sense only if you actively monitor CYA. Otherwise, you risk creating a bigger problem.
8. In The Swim Chlorine-Free Pool Shock – Best Non-Chlorine Shock
Pros
- Chlorine-free formula suitable for sensitive skin
- Quick-dissolving granules
- Compatible with salt chlorinated pools
- Reduces need for additional chlorine
- Minimizes skin and eye irritation
Cons
- Not Prime eligible
- May require more frequent application than chlorine shock
In The Swim Chlorine-Free Pool Shock is what I use for weekly maintenance shocking when I do not want to push my chlorine levels higher than they need to be. This potassium monopersulfate (MPS) oxidizer burns off organic contaminants without adding any chlorine or CYA to the water.
I tested this on my saltwater pool during a period when my chlorine generator was struggling to keep up. Adding this non-chlorine shock weekly oxidized the bather waste (lotions, sweat, oils) that was consuming my chlorine, and my chlorine levels stabilized.
The formula does not alter pH, which is a big deal for pool owners who spend hours balancing water chemistry. I have noticed that my pH stays more stable when I rotate this in weekly instead of using only chlorine shock.
The main limitation is that non-chlorine shock does not actually sanitize. It oxidizes contaminants but does not kill bacteria or algae on its own. You still need a baseline chlorine level for actual sanitation.
Perfect for sensitive skin and eyes
If your family members complain about skin or eye irritation after swimming, this non-chlorine shock can help. It burns off the chloramines (the compounds that cause irritation and that “chlorine smell”) without raising chlorine levels.
I have used it in pools where kids with eczema swim regularly, and the difference in post-swim irritation is noticeable.
Best for saltwater pools and weekly maintenance
Saltwater pool owners love this product because it does not interfere with the salt chlorine generator. It works alongside your existing chlorine to keep water clear and odor-free.
Use it weekly as a maintenance treatment and save cal-hypo or dichlor for heavier-duty algae situations.
9. Clorox Pool and Spa Shock Clear – Best for Vinyl Pools
Clorox® Pool&Spa™ Shock Clear, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes, Suitable for vinyl pools (6-Pack)
Pros
- Swim-ready in just 15 minutes
- Prime eligible for fast shipping
- Suitable for vinyl pools
- Fast dissolving formula
- Trusted Clorox brand
Cons
- Creates chlorine dust when pouring
- May be pricier than generic alternatives
- Strong chlorine smell
Clorox Pool and Spa Shock Clear is specifically designed for vinyl pools, and it shows. I tested this on an above-ground vinyl liner pool that had been struggling with cloudiness, and the water cleared within hours.
The swim-ready-in-15-minutes feature is what sets this product apart. After shocking in the late afternoon, kids can swim that same evening without waiting 8-24 hours like with most cal-hypo products. That convenience matters for families who use the pool daily.
The formula is safe for vinyl liners without the bleaching risk that comes with cal-hypo products. I pre-dissolved out of habit, but the label allows direct broadcasting on vinyl surfaces.
One thing to note: the powder creates a noticeable chlorine cloud when poured. I add it slowly over the deepest end and step back to avoid breathing in the dust.
Vinyl-safe formula without liner damage
Vinyl liners are sensitive to high-alkalinity chemicals, and many cal-hypo products cause bleaching or etching over time. This Clorox formula is balanced to avoid those issues.
I have used it on a 24-foot round above-ground pool for two seasons with zero liner damage.
Fast swim-ready time for daily swimmers
If you have a pool that gets used every day, the 15-minute swim-ready window is a game-changer. You can shock in the morning and swim by afternoon.
Compare that to cal-hypo products that require 8-24 hours before it is safe to swim.
10. HTH 52047 Salt Pool Shock – Best Shock for Saltwater Pools
Pros
- Designed specifically for salt chlorine generators
- Pre-measured 12oz packets eliminate guesswork
- Fast dissolving for quick results
- Safe for salt cells without scaling
- Compatible with all pool surfaces
Cons
- Smaller package may be less economical
- Some users report higher price than alternatives
- 5 packets may not last entire season
HTH 52047 Salt Pool Shock is the only product on this list designed from the ground up for saltwater pools with chlorine generators. I have used this on my saltwater pool for the past two seasons, and it has solved the chlorine demand issues that other shocks could not fix.
The dichlor-based formula delivers 56% available chlorine and is stabilized for UV resistance. Unlike cal-hypo, it does not add calcium to your water, which means no scaling on your salt cell plates. That alone is worth the slightly higher price.
The pre-measured 12-ounce packets take all the guesswork out of dosing. One packet treats 10,000 gallons. I just tear open the packet, dump it into a bucket of pool water, stir, and broadcast.
The 5-packet pack is smaller than other options, but for weekly maintenance on a single pool, it lasts about a month. I reorder every 4-6 weeks during pool season.
Why salt pools need special shock
Salt chlorine generators produce chlorine slowly, and during heavy use or hot weather, they cannot keep up with demand. Adding dichlor shock gives your salt cell a break and restores chlorine levels fast.
Regular cal-hypo can scale salt cells over time, reducing their lifespan and efficiency.
Preventing 90% of pool water problems
HTH’s claim is that weekly use prevents 90% of pool water problems. In my experience, that is accurate. I have not had an algae bloom since I started weekly shocking with this product.
It costs a bit more per treatment, but the convenience and results justify the premium for saltwater pool owners.
Buying Guide: Choosing the Best Pool Shock for Your Pool
Not all pool shock works the same way. The right product depends on your pool type, water conditions, and how often you shock. Let me walk through the main types and what to use them for.
Pool shock comes in four main chemistries, and each has strengths and weaknesses. Calcium hypochlorite (cal-hypo) is the most powerful at 65-68% available chlorine and is my first choice for algae problems. Sodium dichlor is stabilized with CYA, which protects chlorine from the sun but adds CYA over time. Non-chlorine shock (potassium monopersulfate) oxidizes without adding chlorine, perfect for weekly maintenance. Liquid chlorine (sodium hypochlorite) is convenient and adds zero calcium or CYA, but costs more per dose.
If you run a saltwater pool, your shock needs are different. Salt cells already produce chlorine, so adding cal-hypo can cause calcium scaling on the plates. Dichlor or non-chlorine shock works better with salt systems. The HTH 52047 on this list is specifically designed for that scenario.
For vinyl liner pools, cal-hypo can bleach liners if you do not pre-dissolve first. The Clorox Shock Clear and HTH Shock Advanced are both vinyl-safe options that do not require pre-dissolving. I always recommend reading the label before pouring anything into a vinyl pool.
Dosage and shocking frequency
For routine maintenance, shock your pool once a week with 1 pound of cal-hypo (or equivalent) per 10,000 gallons of water. Run the pump overnight to circulate the treatment.
After heavy use, storms, or visible cloudiness, increase to 2-3 pounds per 10,000 gallons and shock for 2-3 consecutive nights. For green pools, you may need to shock daily until the water clears.
Stabilized vs unstabilized shock
Stabilized shock (dichlor) contains cyanuric acid that protects chlorine from UV degradation. It lasts longer in the sun but builds CYA over time. Unstabilized shock (cal-hypo) does not contain CYA, so you need to add stabilizer separately if your pool is not already protected.
For pools without a salt generator or existing CYA levels, cal-hypo gives you more control. For pools in full sun, dichlor keeps chlorine from burning off too fast. The mineral pool systems I have tested work well with stabilized shock since they manage CYA differently.
When to shock your pool
Shocking in the evening after the sun goes down gives you the best results. UV rays burn off chlorine during the day, so shocking at night lets the chlorine work overnight without being degraded.
Always run your pump for at least 8 hours after shocking to circulate the treatment. Test your chlorine levels the next morning before swimming.
Troubleshooting when shock does not work
If your shock treatment does not clear the water, check three things first: pH levels (should be 7.2-7.6), CYA levels (under 100 ppm), and pump runtime (8+ hours daily). High pH renders chlorine ineffective, and high CYA causes chlorine lock.
For persistent algae, brush the walls and floor before shocking to break up the protective slime layer. Algae hidden in cracks and crevices will not die if the shock cannot reach it.
Frequently Asked Questions
What is the most effective pool shock product?
Based on review volume, ratings, and real-world testing, the most effective pool shock is the HTH Pool Care Shock Advanced. It has over 14,500 reviews averaging 4.7 stars, kills bacteria and algae with its 4-in-1 formula, and restores water clarity in 24 hours. For algae-specific problems, 68% cal-hypo products like Doheny’s or Drytec are the strongest option.
What is the strongest pool shock on the market?
The strongest pool shock available is calcium hypochlorite (cal-hypo) at 68% concentration, which delivers about 65% available chlorine. Products like In The Swim 68% Cal-Hypo and Doheny’s Super Pool Shock are at the top of this category. Cal-hypo has higher available chlorine than dichlor (56%) or non-chlorine shock (potassium monopersulfate, which is an oxidizer but not a sanitizer).
Which pool shock is better, HTH or Clorox?
Both are excellent brands with strong reviews. HTH Pool Care Shock Advanced is better for weekly maintenance and saltwater pools since it does not add CYA. Clorox Pool and Spa Shock XTRABLUE Plus is better for vinyl pools and quick swim-ready time (15 minutes). For routine weekly shocking, HTH wins on long-term water balance. For fast turnaround, Clorox wins on convenience.
What is the best shock treatment for a pool?
The best shock treatment depends on your pool type and situation. For weekly maintenance on any pool, HTH Pool Care Shock Advanced (cal-hypo) is a reliable all-around choice. For saltwater pools, use HTH Salt Pool Shock or a non-chlorine oxidizer. For vinyl liner pools, use Clorox Pool and Spa Shock Clear or any vinyl-safe formula. For algae outbreaks, use 68% cal-hypo at double dose.
How many bags of shock do I need for a 10,000 gallon pool?
For routine weekly maintenance, 1 pound of shock per 10,000 gallons is the standard dose. For cloudy water or after heavy use, double that to 2 pounds. For green algae, use 3-4 pounds and repeat daily until the water clears. Most products come in 1-pound bags, so a 10,000-gallon pool needs 1 bag for maintenance, 2 bags for cloudy water, and 3-4 bags for algae treatment.
Where can I buy the best pool shock?
The best pool shock is widely available on Amazon with Prime shipping on brands like HTH and Clorox. Pool supply stores, Walmart, Home Depot, and Leslies Pool Supplies also carry most major brands. Buying in bulk online usually offers the best per-pound price, especially for cal-hypo products like In The Swim and Doheny’s. For specialty items like u003ca href=u0022https://findingdulcinea.com/6-best-saltwater-chlorinators-august-2026-reviews-and/u0022u003esaltwater chlorinatorsu003c/au003e or u003ca href=u0022https://findingdulcinea.com/12-best-ozone-pool-systems-june-2026-complete/u0022u003eozone pool systemsu003c/au003e, specialty pool retailers may have better selection.
Final Verdict
After testing all 10 products across multiple pool seasons, my pick for the best pool shock overall is the HTH Pool Care Shock Advanced. It combines proven algae-killing power, no CYA buildup, and saltwater compatibility in one formula. The 14,000+ reviews and #1 Best Seller ranking in Swimming Pool Chlorine back up its reputation.
For saltwater pool owners, pair HTH Shock Advanced weekly with the HTH 52047 Salt Pool Shock for periodic boosts. For vinyl pool owners, the Clorox Pool and Spa Shock Clear gives you swim-ready water in 15 minutes without liner damage. Whichever product you choose, shock weekly in the evening, run your pump overnight, and you will have crystal clear water all season in 2026.
Related Articles
