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tprize

5 gallon RO and 5 gallon salt mixing station for under $100

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So I am in the middle of a new tank build, but this I feel like needed it's own post. I wanted to build a super cheap way to make top off water and RO/ for water changes automatically.

So First the list of materials

1 x 1/4" T fitting

2 x 1/4" Shut off valves

2 x Adjustable float valves

3 feet of 1/4 tubing

1 x MJ1200 pump

1 x 1/2" union

1 x 1/2" shut off valve

3 feet of 1/2 tubing

2 x 5 gallon buckets

 

So the first step was to use a punch and a small drill bit to drill a pilot hole, then drill a final   1/2" holes into each bucket and install the float switch. Now I did the first non reinforced area from the top for my holes, because this puts the float valve in a very sturdy position, that won't flex or bow.

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Now because the bottom bucket will have a lid, and a bucket with 5 gallons on top of it, you have to be able to get water out.  So in one of the buckets, create a second 1/2 hole in the exact opposite side of the bucket. The easiest way to do this, is to use the handle for alignment.

Next install the 1/2" union onto the Maxijet 1200,

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then put the Maxijet into the bottom bucket, and run a couple of feet of hose to it through the second hole.

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Now since we are going to put a second bucket on top, we will need to trim the lid, so that it seals nicely on the bucket. Put the lid on, take an exact o knife and mark the area you need to cut and cut.

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You will need to trim for the cord, the 1/2" tube, and the float valve, but the lid will fit nice and tight.

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This is your clean RO bucket, whenever I need water, I put the hose into the container of your choice, plug it in fill, then unplug. The 1/2"  shut off valve will stop the siphon, so you won't suck the entire 5 gallons of water onto your floor.

Now to feed these two, you will need a T valve, and a couple of shut off valves. Simply install these, so they line up with the two buckets.

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Then simply install the RO into the back of the buckets and your done.

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My bottom bucket will supply me with top off and RO water, while my top bucket I can take the lid off of, put a heater and a mixing pump in, toss salt in, and then use a utility pump to put it into a portable 5 gallon bucket. Then wipe the bucket out, and let it refill with fresh RO for the next water change.

 

 

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