When your home’s water is acidic or low-pH, you’re not just dealing with a strange taste or slight discoloration—this invisible problem quietly corrodes your plumbing, eats away at fixtures, and can leave you with costly repairs down the road. Metal pipes develop pinhole leaks, appliances suffer premature wear, and your water can even irritate skin or dull hair. Don’t let low-pH water undermine your comfort and home’s value; it needs a targeted solution designed to neutralize acidity at the source.

The system that fixes it

The Pentek Acidic / Low-pH Water System is engineered to combat corrosive water with precision and reliability. At its core is the robust Pentek-series backwashing control valve, a key component that automatically flushes the system to keep media clean and effective, ensuring consistent performance over time. This genuine, serviceable valve isn’t just a fancy add-on—it’s a dependable mechanism designed for ease of maintenance and longevity, setting this system apart from generic alternatives. The treatment tank itself is built on an upflow calcite design, promoting efficient water contact and maximizing the water’s exposure to the working media. Speaking of which, the blend of calcite and Corosex media quietly neutralizes acidity by gently dissolving trace minerals that raise the pH to a safe, balanced level, protecting your pipes and improving every drop flowing through your home.

• Backwashing control valve: Automatically cleans and maintains media, preventing clogging and performance loss.
• Upflow calcite tank design: Improves media contact and treatment efficiency by directing water from the bottom up.
• Calcite with Corosex media blend: Gradually releases minerals to raise water pH, stopping corrosion in its tracks.
• Serviceable components: Genuine Pentek parts make maintenance straightforward and extend system life.
• Matched system build: Components designed to work seamlessly together for optimal results.

Pick your size

Select the system size that matches your household’s bathroom count to ensure the right media volume and capacity for consistent pH correction throughout your entire home.

What it does for your home

• Eliminates corrosive low-pH water that damages pipes and fixtures.
• Protects plumbing infrastructure from developing leaks and corrosion stains.
• Preserves the lifespan of water-using appliances by preventing acidic wear.
• Delivers cleaner, less metallic-tasting water for drinking and cooking.
• Reduces skin irritation and dryness caused by acidic water exposure.
• Provides peace of mind knowing your home’s water won’t erode its foundation.

With Pentek’s targeted acidic water treatment, your home enjoys a lasting defense against the costly damage and discomfort acidic water causes.

How the media works

The heart of the system’s effectiveness lies in its specially formulated media—a blend of calcite and Corosex. Calcite is a naturally occurring mineral that dissolves slightly into the water, gently raising the pH to a neutral or slightly alkaline level. Corosex, a magnesium oxide-based component, works alongside calcite to accelerate the pH adjustment, especially in cases of very acidic water. This combination ensures a steady release of minerals that neutralize corrosive acidity as water flows upward through the tank, giving your water the balance it needs to stop eating away at pipes and fixtures.

Why buy this system from us

• We use only genuine, fully serviceable Pentek control valves for reliable long-term performance.
• Free professional sizing tailored to your home’s specific needs within the U.S.
• No shipping costs anywhere in the U.S., making your purchase straightforward and economical.
• All components are matched for optimal function and ease of maintenance from one trusted brand.
• Expert support and guidance available every step of the way to ensure your water issues are truly solved.

Common questions

Q? How quickly will I notice improvements after installing the Pentek Acidic / Low-pH Water System?
A The system begins neutralizing acidic water immediately, but you may notice pipe protection benefits and improved water taste and feel within days to weeks depending on your water’s initial acidity.

Q? Can this system handle very low pH levels and prevent all corrosion?
A Yes, the calcite and Corosex media blend is specifically designed for acidic water and stops corrosion by steadily raising water pH to safer levels, protecting your plumbing and fixtures.

Q? How often does the media need to be replaced or maintained?
A The backwashing control valve keeps the media clean and effective, but periodic media replacement depends on water usage and acidity levels—our team can guide you with a maintenance schedule tailored to your home.

Shop the Pentek Acidic / Low-pH Water System →

Prefer another valve brand? The same fix comes in Fleck, Autotrol, C-Series, Pentek and Pentair.