Phosphate Remover Concentrate

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PR-10,000 is a highly concentrated rare-earth phosphate remover. It is formulated to react with phosphates in the water, allowing them to be removed from solution. It reacts with all known types of phosphates on contact and hardens them into a fine precipitate, which falls out of solution. The inert phosphates then floc out, to be vacuumed or filtered out of the pool. PR-10,000 causes cloudiness, which can last anywhere from a few hours to a few days. Use as needed, and do not exceed the recommended dosage unless otherwise specified (see below).

Because of PR-10,000's concentration, a little goes a long way. A dose of PR-10,000 may be surprisingly small to you, but watch it work. PR-10,000 is one of the original Orenda Products and is professional grade.

Why Remove Phosphates?

Unlike most other contaminants in water, chlorine cannot remove phosphates, because they do not interact with each other to reduce phosphate levels, you will need a phosphate remover.

Related: Phosphate Removal (Pillar 3)
NSF/ANSI Certified to Standard 50

How to use PR-10,000

We recommend not exceeding 8 fl.oz./10,000 gallons for a normal treatment unless otherwise specified. This is recommended because of the impact on filter pressure. When phosphates are removed, there is a fine precipitate that falls out of solution. Too much precipitate at one time can cause high pressure in filters.

PRO TIP: Try using PR-10,000 in a commercial spray bottle, and broadcast it across the surface of the pool. The cloudiness is less severe, and you still remove the same amount of phosphates each treatment. Consider following it up with CE-Clarifier, also used in a spray bottle, to help filter out precipitate faster.

PRO TIP 2: If your pool is cloudy/dirty enough that you cannot see the main drain at the bottom of the pool, do not use PR-10,ooo without also purging with CV-600 or CV-700 enzymes. It may not be enough to clear the pool. If there are enough oils and organics in the water, those oils will float and can stick to the falling PR-10,000 fallout dust. This means the dust can stay suspended in the water for days instead of clearing overnight. Enzymes accelerate the clearing of a problem pool.

For green pools, follow our Green Pool Cleanup procedure.

PR-10,000 Product Video

PR-10,000 is our concentrated phosphate remover. 

Wiping off Filter Scum With PR-10,000

Eric walks you through how to use a PR-10,000 applicated to remove filter scum. 

PR-10,000 FAQ

Pr-10,000 Frequently Asked Questions

PR-10,000 Tutorial

This video demonstrates how to use Orenda's concentrated Phosphate Remover PR-10,000

Phosphate and How They Impact Chlorine

PR-10,000 ( and phosphate removal

Why remove phosphates ( Because phosphates are essential micronutrients that allow microorganisms like algae to reproduce well. Removing phosphates won't kill algae, but it can slow their reproductive rate, allowing chlorine to stay ahead of it.

Sanitization is all about the killing rate of the sanitizer versus the growth/reproduction rate of the microorganism. Phosphate removal can significantly slow down the growth rate (, and supplementing chlorine with enzymes ( can optimize chlorine efficiency and killing rate.

Where Do Phosphates Come From?

Phosphates get into swimming pools in three main ways

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Have you ever wondered how and why phosphates get into swimming pools? We know it's important to eliminate phosphates, but why are they there in the first place? There are many different types of phosphates, and there are three main ways they can get in your pool.

Phosphate Removal is Orenda's Third Pillar of Proactive Pool Care.

1. Chemically - Most pool metal and scale control products (sequestering agents) are phosphonic acid-based. Don't worry, not our SC-1000! When new or resurfaced pools are started up, the common practice is to put these sequestering products in the water on the first day. If they're phosphonic-acid-based, you're basically pouring in liquid phosphates.

2. Organically - Phosphorus is a naturally occurring element. It's in soil, so naturally, it can find its way into swimming pools. Think of a rainstorm...for swimming pools with bushes or landscaping near the pool, phosphates can get washed into the pool that way. Another factor is for pools with well water...phosphorus seeps into groundwater through the soil. Fun fact, so can metals. Furthermore, phosphates are key ingredients in most fertilizer products.

3. Finally, your tap water. We already discussed well water often having phosphates in it, but municipal water sources often have phosphates too. Why? For the same reasons listed in item #1. Water has to travel long distances in pipes, and those pipes are vulnerable to corrosion--and the opposite consequence--scale. Phosphonic acid inhibits both of those problems and protects pipes. Sequestering products like phosphonic acid also address water fouling in water treatment facilities, so nowadays it's very common to find phosphates in your fill water. That's one of the many reasons we urge you to test your fill water! 

More Orenda Products

PR-10,000 Phosphate Remover Concentrate
SC-1000 Scale and Metal Control
CV-600 Enzyme Water Cleaner
CV-700 Enzyme Water Cleaner + Phosphate Remover
CE-Clarifier Chitosan Clarifier + Enzyme
CE-SPA Spa Clarifier + Enzyme
SPA-500 Pre-Drain Spa Scrub

Hear what our customers are saying about us

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Suzanne Rohan
“I just have to tell you that I am one happy customer! I have dealt with scaling for a year and now I have noticed when I brush the tile it is slowly coming off! AMAZING! I have asked numerous pool people about how to deal with scale, more people need to know about your products, THEY WORK. THANK YOU. Appreciate it again, you have no idea what I have had to deal with to get rid of scale the last year. (like a pool tile cleaning company that cost me 3500 in damage)“
Carolyn Koss Kasten
“I found Orenda when I opened my 20-year-old pool to find a blizzard of crystals that had formed over the winter. We had never had this problem. Neither my pool company nor the local pool store had any idea what had caused it or what to do. I found Orenda online after researching crystals in pools and called their support. Eric recommended using SC-1000, giving detailed instructions about how to use and what other pool chemical levels I needed to adjust. Using their app and the product I was able to clear the problem within days. Their site also had great videos and instructions about how to maintain your pool. I am an Orenda customer for life!“
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Kevin Conaway
Saint Joseph, Missouri
"Orenda chemicals and staff are the greatest. Talked with Eric last week, he made some recommendations to fix my pool that turned to a complete green pond. After 36 hrs my pool is crystal clear. Its amazing how much you can accomplish when you talk to and use the right products. I am absolutely sold on Orenda products. No more using those chain stores for advice. They led me down the wrong road to many times. Take my advice and start learning how to care for your pool the correct way!!!"
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Rex Gibson
“I have a new pool and just learning how best to balance the water. Love the Orenda Academy and LSI app.“
Silvia Taylor
Plano, Texas
“I replaster my pool in October, and the start up was not done correctly. I had no idea the process that needed to be followed after a new plaster. After so much research, I found Orenda YouTube channel where I'm learning about the the startup process and the basics of the water chemistry. I contacted Orenda Technologies and Jared came to my house to see my swimming pool at no charge. I have been taking advantage of the free training where they teach homeowners the basics of water chemistry to take care of the swimming pool. Did I tell you they have a free app? it is awesome!Thank you very much Eric and Jared!“
Dean Oullette
Dean Ouellette
Chandler, Arizona
“I’m a fan of the Orenda products and how they help me keep my pools beautiful. I’m also a huge fan of the free app. When I pitch a new pool I always tell the customer they can do it for free, here is an app. Then I go through each thing on the app and show how range chemistry doesn’t work. By the time I’m done with them they usually ask me when I can start. Thanks Harold, Eric and the rest of the crew.“
Reason Pack
Reason Pack
“We got an inground pool last year for the first time that had been historically plagued with algae blooms. Thanks to the awesome learning resources and amazing personalized advice from Eric we've been able to keep our water algae-free and we often get compliments on how clear it looks and how nice the water feels. Best of all, their approach involves minimizing the use of unnecessary chemicals, and you'll actually understand when and why you are using them.“
Gwen Taylor
Richmond, Virginia
“Accurate information, up to date, Presented in a way I can understand it, unique ideas for pool maintenance and care“

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