Mechanical pH 15 System Fleck 5600

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Product Features

Complete System

10"x54" resin tank
Riser tube with distributor basket
Fleck 5600 Control Head
1.5 ft³ Calcite Media
Gravel Bed
Choice of connection

High-Flow System

Designed for 2-4 bathrooms and 3-5 people and/or homes with flows matching system capacities

Neutralizes Acid

Corrects low pH, causing the water to be close to neutral

Blended at no charge

For pH less than 6.0, blended with Corosex to provide the best results, at no additional charge

3.2 GPM Service Flow

Treats a maximum flow rate of 3.2 gallons per minute - See more info tab for details

6.3 GPM Backwash Flow

Requires a minimum of 6.3 GPM available for backwashing - See more info tab for details

Fleck 5600 Mechanical Control Head

Simple, low cost head provides automatic backwashing

Structural USA Resin Tank

Durable, high quality polyglass tank made by a trusted name it tank manufacturing

Calcite Media

Naturally occuring calcium carbonate treats acid naturally

Corosex Media (Blended systems only)

Aggressive manganese oxide treats lower pH levels, providing maximum results for supplies with pH less than 6.0

DIY Installation

Simple system connections and detailed installation instructions allow most homeowners to install this system themselves. For those who prefer to leave the work to a professional, most plumbers can install the system in 1-2 hours.


Product Description

Acid neutralization is a must to prevent leaks, maintain fixtures, and ensure good health. Acidic water (water with a pH less than 7.0) can eat away at your plumbing and cause blue/green staining on your fixtures. Some also believe that water with a low pH can have adverse health effects

The pH system uses Calcite to neutralize the acid by dissolving and counteracting the acidity. In homes with pH less than 6.0, a blend of Calcite and Corosex is used, complimenting each other. The Corosex is more aggresive, providing the ability to raise very low pH levels, while the Calcite is slow acting, counterbalancing the Corosex and preventing excessive pH rise. Note: Due to the nature of pH systems some hardness is added to the water. Depending on exisiting hardness levels and pH level, an water softener after the pH system may be recommended

Controlled by the Fleck 5600 control head, this system automatically backwashes. The backwash process simply forces water rapidly through the system in reverse direction, lifting the media and flushing accumulated particulates down the drain. It also prevents the media from solidifying and reducing efficiency. Made by Fleck, the #1 manufacturer of control heads in the US, the mechanical control head is one of the most popular heads on the market.

More Info

Replacement Media:
- Qty Needed:3 (2 on blended systems)
- Qty Needed:1 (blended systems ONLY)
- Qty Needed:20
Service Flows
Service flow rate is the rate (in gallons per minute) at which the media can effectively treat your water. The listed number is the manufacturers recommend rate for maximum neutralization. Higher flow rates MAY be possible in situations where slightly acidic water is desired/acceptable or where incoming water is not very acidic to begin with.

Backwash Flow Rates
The backwash flow rate is the minimum rate that MUST be available to ensure proper backwashing and peak system performance. While lower flows can be used and MAY provide adequate results, using less than the recommended flows WILL void the 30-day satisfaction guarantee. Warranties on the tank and control valve will remain unaffected.
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3 Reviews

  • 5
    Mechanical pH 15 System Fleck 5600

    I replaced a thirty year old system virtually identical to this one that had performed flawlessly all those year. I had a couple of questions that were answered immediately. Sales department was friendly and very helpful. Delivery was very quick, everything I needed was there and in perfect shape. Online instructions were clear and installation was very easy. The cost was around a quarter of what my local water treatment company wanted to install essentially the same system. I'm 75 years old--I'll let you know if this one lasts thirty years too.

  • 5
    works very well

    I am very pleased

  • 3


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