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Featured Videos

Pool Returns Up or Down? It Definitely Makes a Difference!

Which Pool Chlorine Is Best? Liquid, Cal-Hypo, Tabs, Dichlor & Salt Compared

Pool Phosphate Explained: & Finally A Good Solution

Salt Pool vs Chlorine Tablets: Which Is REALLY Better? A Pool Pro Settles the Debate

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Featured Articles

Chlorine Bible, Which Chlorine?

Which Swimming Pool Chlorine Is Best? Liquid Chlorine, Cal-Hypo, Tablets, Dichlor and Salt Systems Explained Pool owners frequently ask me which type…

Top Algaecides for Chlorine Pools: Pros and Cons

Algae Control Options for Chlorine Pools: Uses, Pros, Cons, and Common Watch-Outs Most pool owners reach for algaecide too fast. In a…

Pool Returns Up or Down? It Makes a Difference

Pool Returns Up or Down? Why This Simple Adjustment Can Improve Circulation, Reduce pH Rise, and Even Control Pool Temperature Most pool…

Pool Phosphates: I Finally Found the Right Solution

Phosphates Don't Cause Algae... They Fund It. I don't get excited very often about pool chemicals. In fact, if you've followed me…

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Pool Knowledge Base

Everything you need to keep your pool clean, clear & simple.

Honest pool help from Deep End Frank — water chemistry, repairs, videos and guides built for real pool owners.

Latest Videos

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Fresh from the Deep End Frank YouTube channel.

Polaris 280 Moving Slow? Fix Low or High Pressure / Wall Fitting, Quick Disconnect & Filter 6:41

Polaris 280 Moving Slow? Fix Low or High Pressure / Wall Fitting, Quick Disconnect & Filter

September 12, 2026
STOP Putting Chlorine Tabs in Your Skimmer! How Trichlor Can Damage Pool Equipment 21:21

STOP Putting Chlorine Tabs in Your Skimmer! How Trichlor Can Damage Pool Equipment

September 10, 2026
Polaris 280 Not Moving or Getting Stuck? Check the Backup Valve! 280/380/360 4:22

Polaris 280 Not Moving or Getting Stuck? Check the Backup Valve! 280/380/360

September 5, 2026
⚫ BLACK ALGAE: KILL IT—AND KEEP IT FROM COMING BACK! 18:15

⚫ BLACK ALGAE: KILL IT—AND KEEP IT FROM COMING BACK!

September 3, 2026
Green Pool? Turn It Blue FAST! How to Kill Pool Algae & Clear Green Pool Water 10:16

Green Pool? Turn It Blue FAST! How to Kill Pool Algae & Clear Green Pool Water

September 1, 2026
Polaris 280 Troubleshooting: Tail, Bag, Head Float & Thrust Jet Tips & Adjustments 9:57

Polaris 280 Troubleshooting: Tail, Bag, Head Float & Thrust Jet Tips & Adjustments

August 30, 2026

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