How to recharge DI resin

Discussion in 'I made this!' started by dngspot, Jun 26, 2007.

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  1. dngspot

    dngspot Spaghetti Worm

    Joined:
    Jun 24, 2007
    Messages:
    199
    Location:
    Wichita KS
    1. Fill a five gallon container with cool tap water.

    2. Add 24 fluid oz of RO/DI water in a container. Then put 6 fluid oz of Lye in the container and cover.

    3. Place the lye solution in the five gallon container with cool tap water. Let it cool a bit then shake it, when it heats up then put back in the water. Continue doing this until the lye does not get hot after it is shaken. Be aware that the bottle has some pressure on it at first, if needed loosen the top carefully to let the pressure off. Usually when the bottle is cool it is safe to loosen the top do not do this right after you have shaken the bottle.

    4. Pour 12 fluid oz of RO/DI water in a container and then add 12 fluid oz of hydrochloric acid. Set this aside.

    5. Put two 10 inch canisters of resin in the upside down bottle with the valve attached to the neck. Once the lye has cooled, pour it on top of the resin and stir.

    6. Empty the 5 gallon container with the cool tap water. Prepare a colander with a square of window sheer. This will be your filter. Place the colander over the 5 gallon container.

    7. After the resin has separated and you see about a 2 inch gap between them open the valve until the lower resin (cation) has drained. Then close the valve and set the (anion) aside.

    8. If you drained the cation over the colander then rinse with 1 gallon of RO/DI water. If you drained in a container, put the cation in the colander and rinse.

    9. Place the rinsed cation in a clean container and add the acid mixture to it and stir. If the resin has a color changing dye, the cation will change color when the acid is added.

    10. Clean the colander and filter, and then place over the 5 gallon container. Empty the anion, in the upside down bottle assembly, onto the colander. Rinse with 1 gallon of RO/DI water.

    11. Put the rinsed anion in a zip lock bag. It is done.

    12. Clean the colander and filter again then place back on the 5 gallon container that has the drained lye solution in it. Empty the container, with the cation, onto the colander. Then rinse with 1 gallon of RO/DI water.

    13 Put the cation in a separate zip lock bag for those who run separate cation and anon canisters. If you use mixed resin then mix the cation with the anion.

    The whole article can be found here.

    How to recharge DI resin - Wichita Aquarium Club Forums
     
    Last edited: Jul 24, 2009