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Earlier this week a customer wrote to us with a question about adding more calcite media to his neutralizer. A simple question, really, but with a potentially complicated answer, depending on the neutralizer in question. The process of adding filter media to a neutralizer tank may differ a bit depending on what type of tank you have. Software arc text command autocad 3d download. Adding filter media to a backwashing (downflow) neutralizer is different than adding media to an upflow neutralizer, and is further differentiated by the presence or lack of a top fill plug on either type of tank. Today we’ll explain how to add calcite media to a backwashing neutralizer with or without a top fill plug. If your tank does have a top fill plug (it will be a clearly visible plug near the top of the tank), follow these instructions: Adding Calcite to Down-Flow Type Neutralizers with Top Plug (this type has a backwash control valve) Check pH before and after neutralizer periodically. A pH of less than 7.0 pH is acidic and a range of 7.2 to 8.0 is best for preventing corrosion of pipe and fixtures.

Once or twice a year, depending on pH levels, add more calcite media to the neutralizer filter as follows: 1. Begin by putting neutralizer filter on bypass, or turning the water pressure off before the Neutralizer. Initiate a manual backwash cycle. Since it is on bypass, this will relieve the pressure inside the control valve so you can safely unscrew the media fill plug located on top of the neutralizer tank. Unplug the control valve cord from the wall outlet. Unscrew the media fill plug with channel locks or pliers and, using a tube or hose, siphon 2 to 3 gallons of water out of the filter tank.

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If you don’t siphon water out, water will flow out of the fill plug hole and onto the floor when you add your media. If water on the floor is OK then you do not have to siphon water out first before pouring calcite media into top fill plug hole. Add neutralizer filter media until the tank is 2/3 full.

Do not over-fill: be sure to leave at least 12″ of free space above media to allow room for the media to expand during a backwash. Plug the control valve back in, and slowly turn the bypass valve back to the service position (if it’s in “service” this means it’s in the proper position for filtering and neutralizing). Allow the system to go through a complete backwash and rinse cycle.

Repeat backwash cycle by starting another manual cycle, so the neutralizer is thoroughly backwashed and rinsed before putting it back into service. If your neutralizer does not have a top fill plug follow the instructions below: Adding Calcite to Down-Flow Type Neutralizers without a Top Fill Plug 1. Begin by putting neutralizer filter on bypass, or turning the water pressure off before the Neutralizer. Initiate a manual backwash cycle. Since it is on bypass, this will relieve the pressure inside the control valve so you safely remove the backwash control valve on top of the neutralizer tank.