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ScooterV

Mixing Station Review, what to add?

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ScooterV   

Well, I hope I don't have TOO many "What do you think" questions while I slowly work on things.  Trying to get my mixing station at least partially done today.  I picked up two 64 gal Toter cans with wheels and already found one of the two had two leaks around the molded in front handles and the plastic looked like it likely had air bubbles.  Sealed up and leak free for now, but what started as the RO container is now for saltwater since I can get by more easily with a lower volume until replacing it, should it start to leak again.

So, drilling holes and getting switches in, a second time, for the RO storage.  Here's the current plan, but what would you add?

RO/DI container will be controlled by a double latching controller and solenoid.  It will "almost" empty and when bottom float opens it will refill until top switch closes.  It has a 3rd switch somewhat higher to turn it off if the other fails.  RO/DI is also fed via a Kent physical float.  With it being in the garage I think two float switches and a mechanical float should be good for any overflow worries.  Worst case is some wet concrete until I notice, lol.  The Stenner pump for my ATO will draw from a fitting at the bottom.  JUST above that is an additional float switch so if it ever runs dry for some reason this switch will be on an Apex breakout so it can e-mail me it's low.

Pump in the RO/DI will feed the saltwater storage.  Will be manual for a bit, but otherwise a pump where I can just hit a button and it will fill the saltwater storage until a high level float is closed so I'll always have a known amount of water and know exactly how much salt to add.  Apex controlled.  Apex waits until I turn auto water change back on and the dual head Stenner draws from the bottom.  Again, a low level float to shut it all down when it's too low and email me so it doesn't end up only drawing from the DT with nothing to replace it with.  One pump in the tank to mix the salt and possibly run a short bit each day prior to the AWC kicking in.

Just about ready to start soldering some wires after a leak test, so just looking for any "You forgot, XYZ" :)

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Things look pretty good.  Yours is a lot more automated then mine.  I still want to add solenoid for my freshwater barrel so maybe you can post the one you used?  I have my mixing pump set up to kick on for like three minutes at the top of the hour to keep it mixed fresh.

 

Richard

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ScooterV   

For the RO reservoir I went with autotopoff.com stuff because I'd used it before.  In hindsight I'm sure with three float switches I could have just used the Apex, but three switches would be a chunk towards the total cost anyway and in some ways I think I like this being somewhat independent of the Apex.  For reference though I used the triple horizontal with latching from the custom page. 

http://autotopoff.com/Custom/old.html

It's $60 for the controller and all three switches and the solenoid simply plugs into that.  I also got a stainless normally closed solenoid from them.  I got an additional solenoid to use with the Apex to schedule back flushes of the RO.  I wouldn't trust this for the top off itself, but worked well last time just for a reservoir and I didn't even have what I'm trying to add for more redundancy or alerts.  I know I'm missing something I'll think of when it breaks though, lol.

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ScooterV   

LOL, annnnd I mounted all the switches upside down.  So much for a final leak test with actual RO.  Good thing I had a couple totes with rock in them just to leach some phosphates to dump it all in :(

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Bigdog   

May want to add a drain on each barrel as well it at least a way to get water into a gallon jug it bucket. I find I use mine often enough that I would not want to be without it.

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ScooterV   

Excellent!  I would have thought of that when doing QT and constant manual water changes, lol.  They sit right on the floor so a drain wouldn't work well, so looks like I need to add a couple more small pumps and bulkheads for the next BRS group buy!

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Bigdog   

Yep. I use SW for QT and RODI for mixing 2 part etc. nice to have easy access to it for stuff other than continuous water changes.

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Bigdog   

I have a push button on mine to mix salt for 4 hours when mixing new salt water. And a push button to refill the Rodi tank for 1 hour to top it off if needed and one for 9 hours to refill it completely after emptying it for mixing SW.

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