Where to place draw line in storage tank for AWC?

[Zero_Cool]

I am setting up an AWC using the Apex DOS. My saltwater storage/mixing tank is a 55 gal rectangle (18"x18"x44"). Where would I place the fitting/plumbing to draw fresh saltwater from the storage tank?

Does it go into the top of the tank to prevent potential leaks? If so do I need to get rigid piping to reach the bottom so the draw is always in water?

Can a fitting be placed in the side near the bottom so no internal tubing is needed?

Thank you for your help.

 

[dwest]

I put mine in through the top. That way, I didn’t have to seal it. Then ran the line to the bottom of the tank.

Something to keep in mind is that I learned that I need to clean out my line every couple of years. To make this easier, I zip tied the line to a piece of PVC that sits on the bottom of the container.

 

[Zero_Cool]

I put mine in through the top. That way, I didn’t have to seal it. Then ran the line to the bottom of the tank.

Something to keep in mind is that I learned that I need to clean out my line every couple of years. To make this easier, I zip tied the line to a piece of PVC that sits on the bottom of the container.

So just regular flex RO line zipped to a piece of PVC for weight (so the flex doesn't just curl up)? Or do you use rigid water line?

 

[A_Blind_Reefer]

Second going in from the top. One less seal to worry about. I keep mine about an inch from the bottom just in case I have a little crud at the bottom of the bin. Going through the top eliminates a seal leak but there is always a possibility of a siphon leak depending on how you plumb it.

 

[dwest]

So just regular flex RO line zipped to a piece of PVC for weight (so the flex doesn't just curl up)? Or do you use rigid water line?

Exactly, just regular RO line. One long piece of tubing that goes from the bottom of the tank, through the drilled hole in the top, then directly to my liter meter 3 pump.

I zip tied (twice) the tubing to an approximate 2 ft section of 1 or 2inch pvc.

 

[KStatefan]

I have a fitting thru the top and 1/2” pvc with a 1/4 line down the center to about 1” off bottom

 

[Zero_Cool]

Second going in from the top. One less seal to worry about. I keep mine about an inch from the bottom just in case I have a little crud at the bottom of the bin. Going through the top eliminates a seal leak but there is always a possibility of a siphon leak depending on how you plumb it.

Was planning to use a John Guest bulkhead fitting in either location. I believe I would need a couple of fittings to make that work from the top.

How do you have yours plumbed?

 

[Zero_Cool]

Exactly, just regular RO line. One long piece of tubing that goes from the bottom of the tank, through the drilled hole in the top, then directly to my liter meter 3 pump.

I zip tied (twice) the tubing to an approximate 2 ft section of 1 or 2inch pvc.

Thank you

 

[Zero_Cool]

I have a fitting thru the top and 1/2” pvc with a 1/4 line down the center to about 1” off bottom

I hadn't thought about using 1/2 inch pvc. Is the 1/4 loose at the top or is it sealed into the 1/2 inch?

 

[KStatefan]

I hadn't thought about using 1/2 inch pvc. Is the 1/4 loose at the top or is it sealed into the 1/2 inch?

I printed an adapter for a bulkhead fitting

 

[Zero_Cool]

Very cool!

 

[A_Blind_Reefer]

Was planning to use a John Guest bulkhead fitting in either location. I believe I would need a couple of fittings to make that work from the top.

How do you have yours plumbed?

Same as kstate. 1/2 pvc with a female threaded connector on one end with a male threaded fitting screwed into it from the top and a slip cap as a friction cover with a hole drilled in the center for the rodi tube. The 3d printed option would be pretty slick!