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 directly...so to reduce phosphate levels, you will need a phosphate remover.
Related: Phosphate Removal (Pillar 3).
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: You can complement the PR-10,000 with CE-Clarifier 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-10,000 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 Frequently Asked Questions.
This video demonstrates how to use Orenda's concentrated Phosphate Remover PR-10,000.
Phosphate and How They Impact Chlorine
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 removing the non living organics will allow for your disinfectant to take care of the main problematic contaminants directly such as algae, bacteria, viruses, or other pathogens.
Where Do Phosphates Come From?
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.
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!