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Check the hardness level before and after. If your hardness is higher than 5 grains per gallon after the
neutralizer, your neutralizer may be adding more minerals than is needed, and you can open up the bypass
valves a slight amount in order to blend in some untreated water.
Check the pH before and after. You only need the pH to be in the 7.0 to 7.5 range. If the pH is higher than
that, you may be adding more minerals than is necessary.
Backwash Flow Rate:
One problem that may occur if you do not have enough backwash flow rate to properly clean the Neutralizer
filter is a drop in water pressure, due to fouling of the media from rust or sediment. You can verify the
backwash flow rate by running the drain line into a bucket and timing it when the Fleck 2510 is in Cycle 1 or
backwash. A 1.0 or 1.5 cubic foot system should have 5 gallons per minute and a 2.5 cubic foot system should
have 10 gallons per minute of backwash.
Programming:
In some cases, the Fleck 2510 may not be programmed correctly. Your Fleck 2510 should be set for FLTR or
Filter mode and have two cycles, backwash and rinse. However, if you have a built-in flow sensor, it needs to
be programmed differently. Please contact our office for the programming guide on how to set the Fleck
2510 if you have a built-in flow sensor that tracks gallons used.
Fleck 2510 Filter System (Non Flow Sensor) Standard
Programming Guide Standard
This is for the standard MangOX filter systems that do NOT have the optional flow sensor. If your system is
equipped with a flow sensor, see next section (Page 15). There are two types of programming, standard
USER PROGRAMMING, where you can set the time of day and days between backwashes. The second type is
MASTER PROGRAMMING where you can set the length of the backwash and rinse cycles, and make sure the
control is set to the correct settings for your type of MangOX filter:
User Programming
1.
Press and hold the Up and Down buttons simultaneously for five seconds while in service, and while
the time of day is NOT set to 12:01 PM.
2.
Day Override (Display Code DO): Set to 1 to 14 based on your particular filter system requirements.
Use the Up or Down arrows to change the setting. This is the critical setting that allows your filter to
backwash every fixed number of days. See your Installation and Start-up Guide for more information
or contact us for suggestions for this setting. Press the Extra Cycle button.
3.
Regeneration Time (Display Code RT): In general set to 2:00 am or sometime when no water is being
used, and no other filter or softener is likely to be in a regeneration cycle. Press the Extra Cycle
button.
Page 13
Fleck 2510 Neutralizer Installation & Startup Guide
www.cleanwaterstore.com
Rev 062714
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